我之前已经提到过这个，它就像是楼房的一楼。

I already mentioned that. It's like the ground floor.

youdao

我之前已经提到过人们对于自己从组织结构图中被除名并不出奇——起码是在表现或态度问题上。

I've written before that it's important that people not be surprised that they're being erased from the org chart - at least when it's for performance or attitude reasons.

youdao

既然他们中除一人以外在此之前都已经至少被提到过一次，我们甚至能对他们每一个人做一个简短描述。

Since all but one of them have been at least mentioned before now, we can even do a brief thumbnail sketch of each of them.

youdao

I already mentioned that. It's like the ground floor.

我之前已经提到过这个，它就像是楼房的一楼。

麻省理工公开课 - 固态化学导论课程节选

But mathematically, we've mentioned this before, log N or really to be precise, log base 2 of N, is the way you express this mathematically.

但从数学上说，之前我们已经提到过了，准确地说是log，N，以2为底N的对数，这就是它在数学上的表示。

哈佛公开课 - 计算机科学课程节选