diff --git a/packages/locale/en-US.md b/packages/locale/en-US.md
index 83e73b5cb..3ef357203 100644
--- a/packages/locale/en-US.md
+++ b/packages/locale/en-US.md
@@ -34,8 +34,9 @@ Current supported languages:
 | Language | Filename |
 |------|------|
 | Chinese | zh-CN |
+| Traditional Chinese (HK) | zh-HK |
+| Traditional Chinese (TW) | zh-TW |
 | English | en-US |
-| Traditional Chinese | zh-HK |
 | Turkish | tr-TR |
 
 View all language configs [Here](https://github.com/youzan/vant/tree/dev/packages/locale/lang).
diff --git a/packages/locale/lang/en-US.js b/packages/locale/lang/en-US.ts
similarity index 88%
rename from packages/locale/lang/en-US.js
rename to packages/locale/lang/en-US.ts
index 7a4b2be50..fa0f096f7 100644
--- a/packages/locale/lang/en-US.js
+++ b/packages/locale/lang/en-US.ts
@@ -31,13 +31,13 @@ export default {
   vanCoupon: {
     valid: 'Valid',
     unlimited: 'Unlimited',
-    discount: discount => `${discount * 10}% off`,
-    condition: condition => `At least ${condition}`
+    discount: (discount: number) => `${discount * 10}% off`,
+    condition: (condition: number) => `At least ${condition}`
   },
   vanCouponCell: {
     title: 'Coupon',
     tips: 'Select coupon',
-    count: count => `You have ${count} coupons`
+    count: (count: number) => `You have ${count} coupons`
   },
   vanCouponList: {
     empty: 'No coupons',
diff --git a/packages/locale/lang/tr-TR.js b/packages/locale/lang/tr-TR.ts
similarity index 88%
rename from packages/locale/lang/tr-TR.js
rename to packages/locale/lang/tr-TR.ts
index e27e5c849..09b29a7f1 100644
--- a/packages/locale/lang/tr-TR.js
+++ b/packages/locale/lang/tr-TR.ts
@@ -28,10 +28,16 @@ export default {
   vanSubmitBar: {
     label: 'Toplam:'
   },
+  vanCoupon: {
+    valid: 'Geçerli',
+    unlimited: 'Sınırsız',
+    discount: (discount: number) => `%${discount * 10} indirim`,
+    condition: (condition: number) => `En az ${condition}`
+  },
   vanCouponCell: {
     title: 'Kupon',
     tips: 'Kupon seç',
-    count: count => `${count} adet teklif var`
+    count: (count: number) => `${count} adet teklif var`
   },
   vanCouponList: {
     empty: 'Kupon yok',
@@ -41,12 +47,6 @@ export default {
     disabled: 'Mevcut değil',
     placeholder: 'Kupon kodu'
   },
-  vanCouponItem: {
-    valid: 'Geçerli',
-    unlimited: 'Sınırsız',
-    discount: discount => `%${discount * 10} indirim`,
-    condition: condition => `En az ${condition}`
-  },
   vanAddressEdit: {
     area: 'Alan',
     postal: 'Posta',
diff --git a/packages/locale/lang/zh-CN.js b/packages/locale/lang/zh-CN.ts
similarity index 90%
rename from packages/locale/lang/zh-CN.js
rename to packages/locale/lang/zh-CN.ts
index 39167617a..08b4d5779 100644
--- a/packages/locale/lang/zh-CN.js
+++ b/packages/locale/lang/zh-CN.ts
@@ -31,13 +31,13 @@ export default {
   vanCoupon: {
     valid: '有效期',
     unlimited: '无使用门槛',
-    discount: discount => `${discount}折`,
-    condition: (condition) => `满${condition}元可用`
+    discount: (discount: number) => `${discount}折`,
+    condition: (condition: number) => `满${condition}元可用`
   },
   vanCouponCell: {
     title: '优惠券',
     tips: '使用优惠',
-    count: count => `${count}张可用`
+    count: (count: number) => `${count}张可用`
   },
   vanCouponList: {
     empty: '暂无优惠券',
diff --git a/packages/locale/lang/zh-HK.js b/packages/locale/lang/zh-HK.ts
similarity index 90%
rename from packages/locale/lang/zh-HK.js
rename to packages/locale/lang/zh-HK.ts
index 515b2f0e4..094ced3e5 100644
--- a/packages/locale/lang/zh-HK.js
+++ b/packages/locale/lang/zh-HK.ts
@@ -31,13 +31,13 @@ export default {
   vanCoupon: {
     valid: '有效期',
     unlimited: '無使用門檻',
-    discount: discount => `${discount}折`,
-    condition: (condition) => `滿${condition}元可用`
+    discount: (discount: number) => `${discount}折`,
+    condition: (condition: number) => `滿${condition}元可用`
   },
   vanCouponCell: {
     title: '優惠券',
     tips: '使用優惠',
-    count: count => `${count}張可用`
+    count: (count: number) => `${count}張可用`
   },
   vanCouponList: {
     empty: '暫無優惠券',
diff --git a/packages/locale/lang/zh-TW.js b/packages/locale/lang/zh-TW.ts
similarity index 90%
rename from packages/locale/lang/zh-TW.js
rename to packages/locale/lang/zh-TW.ts
index bd78cbb18..f33dacd8c 100644
--- a/packages/locale/lang/zh-TW.js
+++ b/packages/locale/lang/zh-TW.ts
@@ -31,13 +31,13 @@ export default {
   vanCoupon: {
     valid: '有效期限',
     unlimited: '無使用門檻',
-    discount: discount => `${discount}折`,
-    condition: (condition) => `滿${condition}元可用`
+    discount: (discount: number) => `${discount}折`,
+    condition: (condition: number) => `滿${condition}元可用`
   },
   vanCouponCell: {
     title: '優惠券',
     tips: '使用優惠',
-    count: count => `${count}張可用`
+    count: (count: number) => `${count}張可用`
   },
   vanCouponList: {
     empty: '暫無優惠券',
diff --git a/packages/locale/zh-CN.md b/packages/locale/zh-CN.md
index 4a0ff227b..16b419781 100644
--- a/packages/locale/zh-CN.md
+++ b/packages/locale/zh-CN.md
@@ -35,8 +35,9 @@ Locale.add(messages);
 | 语言 | 文件名 |
 |------|------|
 | 简体中文 | zh-CN |
+| 繁體中文（港） | zh-HK |
+| 繁體中文（台） | zh-TW |
 | 英语 | en-US |
-| 繁體中文 | zh-HK |
 | 土耳其语 | tr-TR |
 
 在 [这里](https://github.com/youzan/vant/tree/dev/packages/locale/lang) 查看所有的 i18n 配置文件。