He maintains further the titles of nobility are of value only for the benefits they confer on those of lesser rank or they're not useful at all.

对于贵族头衔,他认为只有在依据头衔划分利益时,它才具有真实的价值,否则再高的头衔也是一无是处。

耶鲁公开课 - 政治哲学导论课程节选

And it's a useful pattern when you want to express that your feelings have been hurt or that you're not liking something,

当你想表达你在情感上受到了伤害或者不喜欢某件事的时候，这是个很有用的句型。

I get so upset 课堂 - SpeakingMax英语口语达人

Some may or may not be useful, but you just don't know.

有些可能有用,有些可能没用,但你们现在还不知道

耶鲁公开课 - 基础物理课程节选

that you know it's not going to happen or you know it's not useful to do.

你知道这事没发生的可能，或者这么做并不会起到什么作用。

The thing is 课堂 - SpeakingMax英语口语达人