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

I once went to visit the summer palace that he created and that Nicholas II loved so much there.

我曾到过他修建的夏宫看过,据说尼古拉二世特别喜欢那个地方

耶鲁公开课 - 欧洲文明课程节选

I once picked up a guy on Broadway and he was drunk,

我还在百老汇载过一个人，当时他喝得很醉，

记忆犹新的乘客 - SpeakingMax英语口语达人

In back,playing among pine trees I once surprised some wild turkeys.

VOA: special.2010.01.30

And,when I once took the train over to Poitiers,it took three hours, because if you go across the lines it's not good.

由此我坐火车去普瓦捷,会花三个小时,因为穿过省界的话是很不合适的

耶鲁公开课 - 1871年后的法国课程节选

As she told a friend once: "In a life that stopped guessing, you and I should not feel at home."

VOA: special.2010.07.18

So was I once myself a swinger of birches.

当年，我自己也是“荡桦树“的能手。

耶鲁公开课 - 现代诗歌课程节选

That's why I must decide on something at once while there is still time, before I am famous.

VOA: special.2009.09.20

It's one that is maybe initially counterintuitive but actually, I think, is rather important once you begin to think about it.

乍一听你会觉得不可思议，但是仔细一想就会悟出其中道理。

耶鲁公开课 - 文学理论导论课程节选

As he once told the Washington Post: "When I came down I hurt my teeth in the net."

VOA: special.2010.07.05

If my opponent chooses Beta and I choose Alpha, I get 3; Beta, I get 1. Once again Alpha is better.

如果我对手选β,我选α我得3,选β我得1,也是选α好

耶鲁公开课 - 博弈论课程节选

"I thought that sooner or later one thing was sure to happen: The first real test once he was through school would ruin him.

VOA: special.2009.01.03

So yet once more -- and I promise this will be one of the last times that we look back at Milton's mask - but yet once more, let's look at Comus.

因此我们要再一次--我保证,这将是我们最后一次回顾弥尔顿所写的这出面具戏,不管怎么着，让我们再次回顾《科玛斯》

耶鲁公开课 - 弥尔顿课程节选

I thought that sooner or later one thing was sure to happen: The first real test once he was through school would ruin him.

VOA: special.2010.03.27

Actually, the truth is I sort of almost felt that once you were there, it's kind of easy to get lost there, to forget about it.

实际情况是,我觉得一旦你生活在那里，似乎很容易忘记这种冲突。

普林斯顿公开课 - 人性课程节选

More than once, I went down on my knees and asked God to help me decide.

VOA: special.2010.07.22

OK, so what have I done? I just added a little bit more now. I'm now running through a pair of loops. Again notice the encapsulation, that nice abstraction going on, which is what I want. Once I get to this stage though by the way, there might be more than one solution.

我现在运行了一对循环,再一次注意这个封装,抽象得很好，这就是我想要的结果,我按这种方式走到这一步的时候,可能会有多组答案。

麻省理工公开课 - 计算机科学及编程导论课程节选

Not once did I question this fact. My mind told me I was on Mars as your mind tells you that you are upon Earth.

VOA: special.2010.07.10

Pretty much I think about it only once a year, when I'm giving this very lecture.

最多是一年想一次，当我要上这节课时。

耶鲁公开课 - 死亡课程节选

One visitor,a former Navy man,once said: "The only good thing about my fighting in the war was that I was too young to be terrified."

VOA: special.2009.05.25

On each level in the picture, I'm touching each number once, alright.

在这幅图的每一层上，我只会移动每个数字一次。

哈佛公开课 - 计算机科学课程节选

Robert Frank once made this comment about his work: "I am always looking outside, trying to look inside, trying to say something that is true.

VOA: special.2009.03.23

" What do I really,really want to do once I graduate?"

毕业后我真正想做的是什么“

哈佛公开课 - 幸福课课程节选

I let him go on in his own way, and never stopped him once.

VOA: special.2009.08.29

It's all over the place, and as soon as I start to play it, at least once we get in to it, you'll say, "Oh, yeah, i've heard that."

我们经常会听到它,只要我一开始放,至少当我们听到主要部分,你们会说,原来这样啊,我以前听过

耶鲁公开课 - 聆听音乐课程节选

ALLEN: "I love music." BENNY: "So do I. Music once saved my uncle's life."

VOA: special.2009.03.09

I was watching a poker game once on TV and somebody who lost said, and I quote, "They beat me like an ugly stepchild" and the fate of the ugly stepchild is, in fact, not a very good fate but this is not a good study.

有一次我看电视扑克比赛，一个输的人说，我引用他的话”他们把我像丑陋的继子女一样揍了“,丑陋的继子女的命运，确实不是好命运，但这个研究也不是好研究。

耶鲁公开课 - 心理学导论课程节选

She once said: "My favorite thing is to go where I've never been."

VOA: special.2009.08.09

I told you once you know the free parameters, R0 and v0, you know everything about the future of the object.

一旦给定自由参量 R0 和 v0,你就能知道这个物体之后的运动状态

耶鲁公开课 - 基础物理课程节选

And then secondly, I get, you know, once I get to learn I also get to use that to help people.

其次，一旦我学到了东西，就会用来帮助其他人，

如果成为医生 - SpeakingMax英语口语达人