✨ Sliding window pricing of attachment billing info displaying

assets/translations/zh-CN.json

@@ -665,5 +665,8 @@
     "zero": "{} 次浏览",
     "one": "{} 次浏览",
     "other": "{} 次浏览"
-  }
+  },
+  "attachmentBillingUploaded": "已占用的字节数",
+  "attachmentBillingDiscount": "免费的字节数",
+  "attachmentBillingHint": "滑动窗口计价®\n在24小时内上传的文件大小超出免费空间才会适用扣费。"
 }