"We found that easier access to emergency contraception did help women use the pills more quickly when it was needed, and they used it more often, but despite that increased use and faster use, it didn't reduce rates of unintended pregnancy."

VOA: standard.2010.03.22

But in practical purposes most of the time, they didn't-- they just mixed these together and they might use different things.

但实际上大多数情况下，她们并没有。。。,而是把财产混合在一起了。

耶鲁公开课 - 新约课程节选

But, he didn't use the term of electron.

但是他没有用电子这一术语。

麻省理工公开课 - 固态化学导论课程节选