They are very aggressive to be type-A people who just simply made two extra hours out of their 24-hour day.

他们渴望成为上等人,甚至希望每天,能多过两个小时。

麻省理工公开课 - 媒体、教育、市场课程节选

So, in terms of practicing this weekend, I mentioned that instead of getting a problem-set today, what I am going to be posting is optional extra problems.

而对于这周的练习，我曾经说过今天将不会布置作业，但是会布置一些额外的习题。

麻省理工公开课 - 化学原理课程节选

Now this does not mean that a person who doesn't have enough food, someone who is homeless on the streets here, gets an extra thousand or two thousand dollars a month-- that of course will make him or her much happier.

并不是说一个没有足够食物，一个无家可归，流落街头的人，每个月多有一两千美元-,那当然会让他或她更快乐。

哈佛公开课 - 幸福课课程节选