可以先制定一个日期作为开发目标，但不能作为最终的交货期限。

Set a date to use as a schedule goal but not as an ultimate deadline.

youdao

可以先制定一个日期作为开发目标，但不能作为最终的交货期限。

Set a date to use as a schedule goal but not as an ultimate deadline.

youdao