People began, like in any business, to be attentive to whether or not they were early enough.

哪行都是这样,人们都开始留意自己是否来得够早

耶鲁公开课 - 欧洲文明课程节选

There is quite a bit of jousting between them that you need to be attentive too.

他们彼此之间很竞争,你们也必需仔细留意。

耶鲁公开课 - 政治哲学导论课程节选

It will just as likely be misunderstood if you read it three, four, five, or ten times, if you are not attentive to what he's saying.

仍可能误解,但就算是你读了三遍，四遍，五遍或十遍，如果你没有仔细分辨他所说的话。

耶鲁公开课 - 政治哲学导论课程节选