We now have to choose a smart way forward so that no one is ever compelledto ask whether we've made a mistake in staying."

VOA: standard.2009.10.26

You don't have to be very smart to figure out where one word begins and one word ends.

你并不需要非常聪明才能够确定,哪里是单词的开始和结束

耶鲁公开课 - 心理学导论课程节选

and yeah, kind of one day, I'll be smart,

有时候，我会打扮得很漂亮，

时尚让人兴奋 - SpeakingMax英语口语达人

It's possible that he genuinely didn't know what to do, that he wasn't smart enough to understand that he needed to point to the other one.

有可能他是真的不知道该做些什么,他还不够聪明,无法理解他需要指向另一个物体

耶鲁公开课 - 心理学导论课程节选