我吃了苦头后才知道他是个无情的商人。

He's a ruthless businessman, as I know to my cost.

《牛津词典》

直到阿诺德向她交待她的职责时，玛丽安娜才知道她将是惟一的女性。

Marianne had not known until Arnold primed her for her duties that she was to be the sole female.

《柯林斯英汉双解大词典》

直到今天我才知道有他这么个人。

I was unaware of his existence until today.

《牛津词典》

Milton elaborates on this claim that we should read and prove anything we want, for we are sufficient to judge aright.

弥尔顿详尽阐明了这个论点，我们应该多读书,去求证自己想知道的所有事，因此我们才能够做正确的判断。

耶鲁公开课 - 弥尔顿课程节选

I held off for a very long time, but I just got mine a month ago. And now I don't know how I live without it.

我拖了好长时间，一个月前才买的。而且现在我不知道离开它该如何生活。

没有智能手机活不了 - SpeakingMax英语口语达人

But it really wasn't until, I would say, the arrival of Java that object-oriented C++ programming caught the popular attention.

但是知道Java的诞生，才吸引了大众的关注,而后Java和。

麻省理工公开课 - 计算机科学及编程导论课程节选