为什么我们不知道这个头像制作的确切日期呢？

Why don't we know the exact date when this head was made?

youdao

清明节的确切日期是什么时候？

What is the exact date of Tomb Sweeping Festival?

youdao

c - Note说只是延迟了几天，等他知道回家的确切日期后会再次打电话给Kacee。

He tells her that it will only be a few more days and he'll call her when he knows the exact date he's coming home.

youdao

But you shouldn't take the date that I give you, the traditional date, as being firm.

但是我所提供给你的日期历史久远,并不能当做确切的时间加以使用

耶鲁公开课 - 古希腊历史简介课程节选