If it suddenly goes up right after they're issued you kind of suspect that something is screwy here.

但如果在公司公布奖励之后股价就马上升高,这不禁让人怀疑其中有些猫腻

耶鲁公开课 - 金融市场课程节选

Virgil would go on to be a great epic poet but not until after he had written these pastoral eclogues and then after that, after he had written the georgic poems, only then does he write finally the great epic poem The Aeneid.

他会成为一个伟大的史诗家,但这一直到他写出这些抒情诗之后,在那之后，在他完成了那些田园诗篇之后，直到那时他才最终完成了史诗。

耶鲁公开课 - 弥尔顿课程节选

Welles heard that obviously, and he quickly came back. But when she died, he stopped taking lessons, before that, he was adept before he was ten years old.

威尔斯当然听到了，所以他,很快回来了，但在,他母亲去世之后，他就不再上课了，在这之前，在他十岁的时候他就对乐器很熟练了。

麻省理工公开课 - 电影哲学课程节选

You can add something else to the answer without invalidating it, and that is anything with one power of t in it, because if you take one derivative it'll survive, but if you take two derivatives, it'll get wiped out.

你可以往答案后面加上其它东西,而且不影响结果,也就是任何t的一次项,因为你求一次导数之后它还在,但如果你求两次导数,这一项就不存在了

耶鲁公开课 - 基础物理课程节选