Sometimes on television crime dramas you might hear a police officer or a suspect say someone was "eighty-sixed,"

VOA: special.2010.01.08

OK PROFESSOR: Valence electrons. OK, sometimes you're going to be asked to draw a molecular orbital diagram where you're asked to include all electrons, and sometimes it will specifically say only include valence electrons.

教授：价电子，有时候你画一幅分子轨道图,有时候要求你画出所有的电子，有时候特别要求,只包括价电子。

麻省理工公开课 - 化学原理课程节选

Let's say you have a teacher who gives you work that keeps you up till 5 in the morning sometimes.

假如你的老师，他布置的任务有时甚至能让你做到凌晨5点。

How long课堂 - SpeakingMax英语口语达人

Interestingly enough--and you ever wonder this?-- sometimes somebody will wander by a keyboard and say, That's odd.

有趣的是,你们没怀疑过吗,有时某些人会围着键盘端详,然后说,那真奇怪

耶鲁公开课 - 聆听音乐课程节选

You have done it before, but when you say, "I know calculus, " Sometimes it means you know it, sometimes it means you know of some fellow who does or you met somebody who knows.

你们以前学过,但当你们说,"我懂微积分",有时这表明你们懂,有时表示你知道谁懂,或者你遇到了懂这个的人

耶鲁公开课 - 基础物理课程节选

And similar is a leader, sometimes you don' t have all the information that you want, you've gotta be willing to say " i am gonna go with the best information that i have" i am gonna make the best decision that i can and if we were wrong, we admit it, and we fix it, but we won't just stand there.

同样，作为一名领导者，有时你无法取得,所有的相关信息，你要愿意主动地说,“我将最大可能地,利用手上的资料来工作”,“我要做出自己能够做出的最好的决定”,如果我们犯了错，就虚心承认而且设法改正，但我们不会袖手旁观。

普林斯顿公开课 - 领导能力简介课程节选

And I mean, sometimes it's luck, but I say mostly it's skill, you know,

我的意思是，有时候靠运气，但是要我说，大部分还是看技术，你知道。

体育相片的魅力 - SpeakingMax英语口语达人

But sometimes I could say what I choose to be, "How are you?" "Pretty damn good."

但有时,我可以选择那些我想要说的话,"你好吗","非常好"

耶鲁公开课 - 心理学导论课程节选