她斩钉截铁地说以前从未见过这个男人。

She averred that she had never seen the man before.

《牛津词典》

我刚刚收到母校的一封信，通知我说以前的校长斯图亚特·佩奇先生下星期就退休了。

I have just received a letter from my old school, informing me that my former headmaster, Mr. Stuart Page, will be retiring next week.

youdao

很久以前，函数被称为“子程序”(我知道，我这样说证明我已经老了！)管理复杂性的主要方式之一是自顶向下的编程模式。

A long time ago, when functions were called "subroutines" (I'm dating myself, I know), one of the main ways to manage complexity was top-down programming.

youdao

I'm not quite sure,because we have to turn to a metaphysical question that we've touched upon before,namely,can souls split?

我不太确定，因为要先提出一个以前说过的,形而上学的问题，就是，灵魂可以分裂么？

耶鲁公开课 - 死亡课程节选

I mean, you may not understand it with algebra before but some of these sorts of pictures have you seen before?

我是说可能代数部分你没看懂,但你们以前见过类似的图像吧

耶鲁公开课 - 博弈论课程节选

Bisection methods were known to the ancient Greeks, and it is believed by many, even to the Babylonians.

二分法由古希腊人所发明,我以前也说过，一直到17世纪二分法都被。

麻省理工公开课 - 计算机科学及编程导论课程节选