- "She lived unknown and few could know"-- how can she be unknown if few know anything about her?

她不为人知地活着，鲜有人知道她“,如果有任何人知道关于她的任何事情,又怎么能说他不为人知呢？

耶鲁公开课 - 文学理论导论课程节选

But do you know other attractions that visitors might not be familiar with?

但你知不知道哪些游人们一般不太熟悉的景点呢？

有各种社区 - SpeakingMax英语口语达人

I'm defending, I'm defending the physicalist by saying, "Don't blame us. We don't know how to explain it yet."

说我在辩护,当我给物理主义者辩护时我会说,别怪我们,我们还不知道怎么解释呢

耶鲁公开课 - 死亡课程节选

We don't know whether this was because he didn't want to take the chance or because he believed in categorical moral principles.

不知道他是因为不愿意冒这个险呢,还是因为他信奉绝对主义道德原则。

耶鲁公开课 - 公正课程节选

What's important about the construction of St. Petersburg-- I don't know how many of you have ever been there; I haven't been there for a very, very long time-- this city is not like Moscow at all.

那么修建圣彼得堡到底有什么重要的意义呢,我不知道你们之中有多少人去过那儿,我并没有在那个地方逗留过很久,但这座城市和莫斯科完全不一样

耶鲁公开课 - 欧洲文明课程节选

And because of his reputation as a genius people said, "Wow. That's very profound. I wonder what he means."

因为他被传为天才，别人就会想，“多么深刻，不知道是什么意思呢”

耶鲁公开课 - 心理学导论课程节选

I don't know about that. I am not so sure." But then, we realized that like when we walk out that door, it's the whole world again. So you get sucked up by your group, by your sort of identity.

我不知道，不是很确定，然后呢，我们就意识到走出那个大门，又是一个完整的世界，所以你就会,被你的团体，你的身份所束缚。

普林斯顿公开课 - 人性课程节选

This is useful especially when we get to details like forensics and looking at data on a hard drive, - 'cause if you don't know how much store-- how many bits are composing your file, you're never gonna recover that data or be able to access what you're looking for.

这是很有用的，尤其是在法庭上,查看硬盘驱动器里的数据时，如果你连-,文件有多少比特都不知道，你如何去恢复数据,获取你想要的信息呢。

哈佛公开课 - 计算机科学课程节选

What kind of food? Well I'm bringing dessert. I don't know.

什么样的食物呢？我会带甜点。我不知道。

去学校聚会的路上 - SpeakingMax英语口语达人

and they're kids, they don't know how to be parents,

他们自己都是孩子呢，根本不知道怎么为人父母。

重要的是家庭教育 - SpeakingMax英语口语达人

They didn't have atoms, but more than just matter.

他们那时还不知道原子呢,仅仅略高于物质的层面

耶鲁公开课 - 死亡课程节选

It's a secret number so that if Julius Caesar scrambled his message with the key 13, well, then the recipient had better know what that number is or realistically, -- and this is why it's kind of hard to buy -- into some of these age old algorithms, -- what would an alternative approach be to figuring out Julius Caesar's messages to his generals if he didn't know that secret number was 13?

它是一个机密的数字，以至于,如果凯撒大帝使用密钥13加密了它的消息，然后接收者最好知道那个数字是什么,实际上--这就是为什么很难,破解这些古老的算法-,有什么变换方法使凯撒大帝的将军,可以解密凯撒大帝的消息，如果他不知道,那个机密数字是13呢？

哈佛公开课 - 计算机科学课程节选