I have all sorts of memories now that I didn't have when I was 10.

我现在拥有的记忆,是我10岁的时候所没有的。

耶鲁公开课 - 死亡课程节选

You are now a history teacher. But did you ever go to New York museums when you were a student?

你现在是一个历史老师。但是你做学生的时候，去过纽约博物馆吗？

美国的博物馆教育 - SpeakingMax英语口语达人

Now, efficiency is obviously an important consideration when you're designing code, although I have to admit, at least for me, I usually want to at least start initially with code that works, and then worry about how I might go back and come up with more efficient implementation.

现在，当你设计程序的时候效率,是不得不考虑的问题，虽然我必须承认，至少对我来说,我是先担心程序能不能运行,再去把它的效率优化的,我喜欢可靠点的东西。

麻省理工公开课 - 计算机科学及编程导论课程节选

I should say it once, that this is now a very controversial subject.

我应该说说以前的时候,这在现在来讲是颇具争议的话题

耶鲁公开课 - 古希腊历史简介课程节选