The Palestinians say they will be there too, but they say the meeting does not signal a formal resumption of peace talks.

VOA: standard.2009.09.19

We'll get to oxidation number in the second half of this course, but it's not in any way the same idea as formal charge.

我们会在课程的后半部分讲到氧化数，但它和形式电荷完全不是同一个概念。

麻省理工公开课 - 化学原理课程节选