diff --git a/internal/bill/handler.go b/internal/bill/handler.go
index 75f40d0..0b3bc3d 100644
--- a/internal/bill/handler.go
+++ b/internal/bill/handler.go
@@ -5,6 +5,8 @@ import (
 	"github.com/gofiber/fiber/v2"
 )
 
+// TODO: 日期传输是使用时间戳，存储时分开年月日
+
 type BillHandler struct {
 	billService BillService
 }