本补充协议于文首标明的协议日期签署并同时生效。

This Supplemental Agreement is executed on the date first above written and shall take effect as of such date.

youdao

本补充协议于文首标明的协议日期签署并同时生效。

This Supplemental Agreement is executed on the date first above written and shall take effect as of such date.

youdao