diff --git a/openless-all/app/src/components/Capsule.tsx b/openless-all/app/src/components/Capsule.tsx
index 499478a1..43780554 100644
--- a/openless-all/app/src/components/Capsule.tsx
+++ b/openless-all/app/src/components/Capsule.tsx
@@ -119,11 +119,12 @@ interface CircleButtonProps {
 }
 
 function CircleButton({ variant, enabled, onClick }: CircleButtonProps) {
+  const { t } = useTranslation();
   const isCancel = variant === 'cancel';
   return (
     <button
       onClick={enabled ? onClick : undefined}
-      aria-label={isCancel ? 'cancel' : 'confirm'}
+      aria-label={isCancel ? t('common.cancel') : t('settings.shortcuts.confirm')}
       disabled={!enabled}
       style={{
         width: 28,
diff --git a/openless-all/app/src/i18n/en.ts b/openless-all/app/src/i18n/en.ts
index 6f54b553..47796da2 100644
--- a/openless-all/app/src/i18n/en.ts
+++ b/openless-all/app/src/i18n/en.ts
@@ -24,6 +24,8 @@ export const en: typeof zhCN = {
     copied: 'Copied',
     operationFailed: 'Operation failed',
     add: 'Add',
+    durationSeconds: '{{value}}s',
+    durationMinutes: '{{value}}m',
   },
   capsule: {
     thinking: 'Thinking…',
@@ -193,6 +195,12 @@ export const en: typeof zhCN = {
       },
       fillDefault: 'Fill default value',
       readFailed: 'Read failed',
+      apiKeyLabel: 'API Key',
+      baseUrlLabel: 'Base URL',
+      modelLabel: 'Model',
+      appKeyLabel: 'App Key',
+      accessKeyLabel: 'Access Key',
+      resourceIdLabel: 'Resource ID',
     },
     shortcuts: {
       title: 'Shortcut reference',
diff --git a/openless-all/app/src/i18n/zh-CN.ts b/openless-all/app/src/i18n/zh-CN.ts
index a7861edb..5c2bc75f 100644
--- a/openless-all/app/src/i18n/zh-CN.ts
+++ b/openless-all/app/src/i18n/zh-CN.ts
@@ -22,6 +22,8 @@ export const zhCN = {
     copied: '已复制',
     operationFailed: '操作失败',
     add: '添加',
+    durationSeconds: '{{value}} 秒',
+    durationMinutes: '{{value}} 分钟',
   },
   capsule: {
     thinking: '正在思考中',
@@ -191,6 +193,12 @@ export const zhCN = {
       },
       fillDefault: '填入默认值',
       readFailed: '读取失败',
+      apiKeyLabel: 'API 密钥',
+      baseUrlLabel: '接口地址',
+      modelLabel: '模型',
+      appKeyLabel: 'App Key（应用密钥）',
+      accessKeyLabel: 'Access Key（访问密钥）',
+      resourceIdLabel: '资源 ID',
     },
     shortcuts: {
       title: '快捷键速查',
diff --git a/openless-all/app/src/pages/History.tsx b/openless-all/app/src/pages/History.tsx
index 2976d2f1..bb8be925 100644
--- a/openless-all/app/src/pages/History.tsx
+++ b/openless-all/app/src/pages/History.tsx
@@ -151,7 +151,7 @@ export function History() {
                     {formatTime(s.createdAt)}
                   </span>
                   <span style={{ fontSize: 10, color: 'var(--ol-ink-4)', fontFamily: 'var(--ol-font-mono)' }}>
-                    {formatDuration(s.durationMs)}
+                    {formatDuration(s.durationMs, t)}
                   </span>
                 </div>
                 <div style={{ fontSize: 12, color: 'var(--ol-ink-2)', lineHeight: 1.45, display: '-webkit-box', WebkitLineClamp: 2, WebkitBoxOrient: 'vertical', overflow: 'hidden' }}>
@@ -170,7 +170,7 @@ export function History() {
                 <div style={{ display: 'flex', alignItems: 'center', gap: 10 }}>
                   <span style={{ fontSize: 13, fontFamily: 'var(--ol-font-mono)', color: 'var(--ol-ink-3)' }}>{formatTime(item.createdAt)}</span>
                   <Pill size="sm" tone="default">{MODE_LABEL[item.mode]}</Pill>
-                  <span style={{ fontSize: 11, color: 'var(--ol-ink-4)' }}>{formatDuration(item.durationMs)}</span>
+                  <span style={{ fontSize: 11, color: 'var(--ol-ink-4)' }}>{formatDuration(item.durationMs, t)}</span>
                 </div>
                 <div style={{ display: 'flex', gap: 6 }}>
                   <Btn icon="copy" variant="ghost" size="sm" onClick={onCopy}>{t('common.copy')}</Btn>
@@ -227,9 +227,9 @@ function formatTime(iso: string): string {
   return `${d.getMonth() + 1}/${d.getDate()} ${pad(d.getHours())}:${pad(d.getMinutes())}`;
 }
 
-function formatDuration(ms: number | null): string {
+function formatDuration(ms: number | null, t: ReturnType<typeof useTranslation>['t']): string {
   if (ms == null || ms <= 0) return '—';
   const sec = ms / 1000;
-  if (sec < 60) return `${sec.toFixed(1)}s`;
-  return `${(sec / 60).toFixed(1)}m`;
+  if (sec < 60) return t('common.durationSeconds', { value: sec.toFixed(1) });
+  return t('common.durationMinutes', { value: (sec / 60).toFixed(1) });
 }
diff --git a/openless-all/app/src/pages/Overview.tsx b/openless-all/app/src/pages/Overview.tsx
index 23540f7a..75a767e2 100644
--- a/openless-all/app/src/pages/Overview.tsx
+++ b/openless-all/app/src/pages/Overview.tsx
@@ -112,8 +112,8 @@ export function Overview({ onOpenHistory }: OverviewProps) {
 
       <div style={{ display: 'grid', gridTemplateColumns: 'repeat(4, 1fr)', gap: 12, marginBottom: 18 }}>
         <Metric icon="hash" label={t('overview.metricChars')} value={metrics.charsToday.toLocaleString()} trend={t('overview.metricSegments', { count: metrics.segmentsToday })} />
-        <Metric icon="mic" label={t('overview.metricDuration')} value={formatDuration(metrics.totalDurationMs)} trend="" />
-        <Metric icon="clock" label={t('overview.metricAvg')} value={formatDuration(metrics.avgLatencyMs)} trend={metrics.segmentsToday > 0 ? t('overview.metricAvgTrend') : t('overview.metricNoData')} />
+        <Metric icon="mic" label={t('overview.metricDuration')} value={formatDuration(metrics.totalDurationMs, t)} trend="" />
+        <Metric icon="clock" label={t('overview.metricAvg')} value={formatDuration(metrics.avgLatencyMs, t)} trend={metrics.segmentsToday > 0 ? t('overview.metricAvgTrend') : t('overview.metricNoData')} />
         <Metric icon="bolt" label={t('overview.metricTotal')} value={String(history.length)} trend={t('overview.metricTotalTrend')} accent />
       </div>
 
@@ -241,6 +241,7 @@ function WeekChart({ data }: { data: number[] }) {
 }
 
 function RecentRow({ session, modeLabel }: { session: DictationSession; modeLabel: Record<PolishMode, string> }) {
+  const { t } = useTranslation();
   return (
     <div style={{ padding: '12px 18px', borderBottom: '0.5px solid var(--ol-line-soft)', display: 'flex', gap: 12, alignItems: 'flex-start' }}>
       <div style={{ display: 'flex', flexDirection: 'column', alignItems: 'flex-start', gap: 4, minWidth: 60 }}>
@@ -253,7 +254,7 @@ function RecentRow({ session, modeLabel }: { session: DictationSession; modeLabe
         {session.finalText.split('\n')[0]}
       </div>
       <span style={{ fontSize: 10.5, color: 'var(--ol-ink-4)', fontFamily: 'var(--ol-font-mono)' }}>
-        {formatDuration(session.durationMs ?? 0)}
+        {formatDuration(session.durationMs ?? 0, t)}
       </span>
     </div>
   );
@@ -269,10 +270,10 @@ function formatTime(iso: string): string {
   return `${d.getMonth() + 1}/${d.getDate()}`;
 }
 
-function formatDuration(ms: number): string {
+function formatDuration(ms: number, t: ReturnType<typeof useTranslation>['t']): string {
   if (ms <= 0) return '—';
   const sec = ms / 1000;
-  if (sec < 60) return `${sec.toFixed(1)}s`;
+  if (sec < 60) return t('common.durationSeconds', { value: sec.toFixed(1) });
   return `${Math.floor(sec / 60)}:${String(Math.floor(sec % 60)).padStart(2, '0')}`;
 }
 
diff --git a/openless-all/app/src/pages/Settings.tsx b/openless-all/app/src/pages/Settings.tsx
index 0474ba6a..9ab41500 100644
--- a/openless-all/app/src/pages/Settings.tsx
+++ b/openless-all/app/src/pages/Settings.tsx
@@ -295,10 +295,10 @@ function ProvidersSection() {
             ))}
           </select>
         </SettingRow>
-        <CredentialField key={`${llmProvider}:api_key`} label="API Key" account="ark.api_key" mono mask />
-        <CredentialField key={`${llmProvider}:endpoint`} label="Base URL" account="ark.endpoint"
+        <CredentialField key={`${llmProvider}:api_key`} label={t('settings.providers.apiKeyLabel')} account="ark.api_key" mono mask />
+        <CredentialField key={`${llmProvider}:endpoint`} label={t('settings.providers.baseUrlLabel')} account="ark.endpoint"
           placeholder={preset.baseUrl || 'https://your-endpoint/v1'} />
-        <CredentialField key={`${llmProvider}:model`} label="Model" account="ark.model_id"
+        <CredentialField key={`${llmProvider}:model`} label={t('settings.providers.modelLabel')} account="ark.model_id"
           placeholder={preset.modelPlaceholder || 'model-name'} mono />
       </Card>
 
@@ -320,17 +320,17 @@ function ProvidersSection() {
         </SettingRow>
         {asrProvider === 'volcengine' ? (
           <>
-            <CredentialField key={`${asrProvider}:app_key`} label="App Key" account="volcengine.app_key" mono mask />
-            <CredentialField key={`${asrProvider}:access_key`} label="Access Key" account="volcengine.access_key" mono mask />
-            <CredentialField key={`${asrProvider}:resource_id`} label="Resource ID" account="volcengine.resource_id" mono
+            <CredentialField key={`${asrProvider}:app_key`} label={t('settings.providers.appKeyLabel')} account="volcengine.app_key" mono mask />
+            <CredentialField key={`${asrProvider}:access_key`} label={t('settings.providers.accessKeyLabel')} account="volcengine.access_key" mono mask />
+            <CredentialField key={`${asrProvider}:resource_id`} label={t('settings.providers.resourceIdLabel')} account="volcengine.resource_id" mono
               placeholder={ASR_DEFAULT_RESOURCE_ID} defaultValue={ASR_DEFAULT_RESOURCE_ID} />
           </>
         ) : (
           <>
-            <CredentialField key={`${asrProvider}:api_key`} label="API Key" account="asr.api_key" mono mask />
-            <CredentialField key={`${asrProvider}:endpoint`} label="Base URL" account="asr.endpoint"
+            <CredentialField key={`${asrProvider}:api_key`} label={t('settings.providers.apiKeyLabel')} account="asr.api_key" mono mask />
+            <CredentialField key={`${asrProvider}:endpoint`} label={t('settings.providers.baseUrlLabel')} account="asr.endpoint"
               placeholder="https://api.openai.com/v1" defaultValue="https://api.openai.com/v1" />
-            <CredentialField key={`${asrProvider}:model`} label="Model" account="asr.model"
+            <CredentialField key={`${asrProvider}:model`} label={t('settings.providers.modelLabel')} account="asr.model"
               placeholder="whisper-1" />
           </>
         )}