I once landed on my face. I soon learned that it took much less effort for me to move on Mars than it did on Earth.

VOA: special.2010.07.10

Well, "The wonder is I didn't see at once" and that is the grave that he has made for their child.

奇迹的是我曾经看不见“,是他为他们的孩子准备的坟墓。

耶鲁公开课 - 现代诗歌课程节选

Everytime I've gone to go see a show, except for maybe once or twice,

大概只有一两次例外，每次我去看一场演出时，

实惠的歌舞剧 - SpeakingMax英语口语达人

He once said: "I go for honorable compromise whenever it can be made.

VOA: special.2009.03.19

On the other hand, am I likely to only search a list once? Probably not. There are going to be multiple elements I'm going to be looking for, so that suggests that in fact, I want to amortize the cost.

我可能就搜索一次么？,可能不是，可能我要找好多个元素,这样的情况下,我们就能分摊开销了，这告诉我们什么？这意味着。

麻省理工公开课 - 计算机科学及编程导论课程节选

Doctor Seuss once said "I do not write for children.

VOA: special.2010.05.02

That's where I--once that gets going, it goes for a long period of time.

一旦开始了,就喋喋不休

耶鲁公开课 - 聆听音乐课程节选

But there was once, and I'm caring now,for her sake."

VOA: special.2010.05.15

But I think once you start looking for them,you find them everyplace.

而且一旦查看起来，其实无处不在。

耶鲁公开课 - 死亡课程节选

For once,I will meet you half-way.

VOA: special.2010.04.24

Never go back. Find another. Leave at once. Go for a long trip again, but this time we'll go wherever I want, won't we?" I nodded. My Lolita.

绝不会去，另找一所学校，马上走，再去长途旅行，不过这次去我想去的地方，好吗？“我点头，我的洛丽塔。

耶鲁公开课 - 1945年后的美国小说课程节选

"Doc told an interviewer once, 'Whether I'm playing for myself or for an enthusiastic audience, I can get the same emotions I had when Dad got me that first guitar.'

VOA: standard.2010.06.07

Once you know what pieces to look for, what mental constructs to reach for, can you realize all right I want to make some dancing figures go back and forth, I need to loop this way and loop this way and check if I'm on the edge and so forth.

一旦确定需要查找的部分,想要达到那种层次，你是否意识到,我想做出一些可以来回走动跳舞的人，我需要按这种方式那种方式让它转圈,并检查我是否,到了屏幕的边缘等等。

哈佛公开课 - 计算机科学课程节选

"So I think we need to brace ourselves for a new period." Analysts say the once political and militarily strategic alliance between Turkey and Israel was the most powerful alliance in the region.

VOA: standard.2009.10.27

How could anything be bad for me once I'm dead?

我死后又有什么事情能对我不好呢？

耶鲁公开课 - 死亡课程节选

So in other words, every time I merge the point that I kept emphasizing verbally there and that I'm only touching each number once, means that we have to account for the amount of time it takes to merge N which is going to be just N. Now, this is again one of these cyclical answers.

换言之，之前在做合并时,我不停地强调,对每个数字我只碰了一次，这就是说,我们要记录合并所花的时间量,也就是这里的,这又是一种循环性的答案。

哈佛公开课 - 计算机科学课程节选