diff --git a/internal/handler/recurring_transaction_handler.go b/internal/handler/recurring_transaction_handler.go
index 1ddb057..2efa2ea 100644
--- a/internal/handler/recurring_transaction_handler.go
+++ b/internal/handler/recurring_transaction_handler.go
@@ -5,10 +5,10 @@ import (
 	"strconv"
 	"time"
 
-	"accounting-app/pkg/api"
 	"accounting-app/internal/models"
 	"accounting-app/internal/repository"
 	"accounting-app/internal/service"
+	"accounting-app/pkg/api"
 
 	"github.com/gin-gonic/gin"
 )
@@ -55,7 +55,7 @@ type UpdateRecurringTransactionRequest struct {
 
 // CreateRecurringTransaction handles POST /api/v1/recurring-transactions
 // Creates a new recurring transaction with the provided data
-// Validates: Requirements 1.2.1 - 鍒涘缓鍛ㄦ湡鎬т氦鏄撳苟淇濆瓨鍛ㄦ湡瑙勫垯
+// Validates: Requirements 1.2.1 - 创建周期性交易并保存周期规则
 func (h *RecurringTransactionHandler) CreateRecurringTransaction(c *gin.Context) {
 	var req CreateRecurringTransactionRequest
 	if err := c.ShouldBindJSON(&req); err != nil {
@@ -171,7 +171,7 @@ func (h *RecurringTransactionHandler) GetRecurringTransaction(c *gin.Context) {
 
 // UpdateRecurringTransaction handles PUT /api/v1/recurring-transactions/:id
 // Updates an existing recurring transaction with the provided data
-// Validates: Requirements 1.2.3 - 缂栬緫鍛ㄦ湡鎬т氦鏄撴ā鏉?
+// Validates: Requirements 1.2.3 - 编辑周期性交易模板
 func (h *RecurringTransactionHandler) UpdateRecurringTransaction(c *gin.Context) {
 	id, err := strconv.ParseUint(c.Param("id"), 10, 32)
 	if err != nil {
@@ -236,7 +236,7 @@ func (h *RecurringTransactionHandler) UpdateRecurringTransaction(c *gin.Context)
 
 // DeleteRecurringTransaction handles DELETE /api/v1/recurring-transactions/:id
 // Deletes a recurring transaction by ID
-// Validates: Requirements 1.2.4 - 鍒犻櫎鍛ㄦ湡鎬т氦鏄?
+// Validates: Requirements 1.2.4 - 删除周期性交易
 func (h *RecurringTransactionHandler) DeleteRecurringTransaction(c *gin.Context) {
 	id, err := strconv.ParseUint(c.Param("id"), 10, 32)
 	if err != nil {
@@ -267,7 +267,7 @@ func (h *RecurringTransactionHandler) DeleteRecurringTransaction(c *gin.Context)
 // ProcessDueRecurringTransactions handles POST /api/v1/recurring-transactions/process
 // Processes all due recurring transactions and generates actual transactions
 // For income transactions, it also triggers matching allocation rules
-// Validates: Requirements 1.2.2 - 鍒拌揪鍛ㄦ湡瑙﹀彂鏃堕棿鑷姩鐢熸垚浜ゆ槗璁板綍
+// Validates: Requirements 1.2.2 - 到达周期触发时间自动生成交易记录
 func (h *RecurringTransactionHandler) ProcessDueRecurringTransactions(c *gin.Context) {
 	// Get current time or use provided time for testing
 	now := time.Now()
diff --git a/internal/handler/transaction_handler.go b/internal/handler/transaction_handler.go
index 10d80ab..0fa763c 100644
--- a/internal/handler/transaction_handler.go
+++ b/internal/handler/transaction_handler.go
@@ -63,7 +63,7 @@ type UpdateTransactionRequest struct {
 
 // CreateTransaction handles POST /api/v1/transactions
 // Creates a new transaction with the provided data
-// Validates: Requirements 1.1 - 鍒涘缓浜ゆ槗璁板綍
+// Validates: Requirements 1.1 - 创建交易记录
 func (h *TransactionHandler) CreateTransaction(c *gin.Context) {
 	var req CreateTransactionRequest
 	if err := c.ShouldBindJSON(&req); err != nil {
@@ -118,7 +118,7 @@ func (h *TransactionHandler) CreateTransaction(c *gin.Context) {
 
 // GetTransactions handles GET /api/v1/transactions
 // Returns a list of transactions with pagination and filtering
-// Validates: Requirements 1.4 - 鏌ョ湅浜ゆ槗鍒楄〃锛堟寜鏃堕棿鍊掑簭锛?
+// Validates: Requirements 1.4 - 查看交易列表（按时间倒序）
 func (h *TransactionHandler) GetTransactions(c *gin.Context) {
 	// Parse query parameters
 	input := service.TransactionListInput{}
@@ -276,7 +276,7 @@ func (h *TransactionHandler) GetTransaction(c *gin.Context) {
 
 // UpdateTransaction handles PUT /api/v1/transactions/:id
 // Updates an existing transaction with the provided data
-// Validates: Requirements 1.2 - 缂栬緫浜ゆ槗璁板綍
+// Validates: Requirements 1.2 - 编辑交易记录
 func (h *TransactionHandler) UpdateTransaction(c *gin.Context) {
 	id, err := strconv.ParseUint(c.Param("id"), 10, 32)
 	if err != nil {
@@ -329,7 +329,7 @@ func (h *TransactionHandler) UpdateTransaction(c *gin.Context) {
 
 // DeleteTransaction handles DELETE /api/v1/transactions/:id
 // Deletes a transaction by ID
-// Validates: Requirements 1.3 - 鍒犻櫎浜ゆ槗璁板綍
+// Validates: Requirements 1.3 - 删除交易记录
 func (h *TransactionHandler) DeleteTransaction(c *gin.Context) {
 	id, err := strconv.ParseUint(c.Param("id"), 10, 32)
 	if err != nil {