And I think many parents believe that if they didn't persist in using these things their children would never learn to speak.

我相信很多父母认为,如果他们不坚持使用这些东西,他们的孩子将永远也学不会说话

耶鲁公开课 - 心理学导论课程节选

It doesn't matter if you've never heard of them or if you never think of them again-- but, Titian. The famous Titian.

你们没听说过或者听完课就忘了也没关系,例如著名的提香

耶鲁公开课 - 欧洲文明课程节选

Until that's resolved, I don't think we can never be comfortable.

在这个问题解决之前，我想我们不会安心的。

普林斯顿公开课 - 国际座谈会课程节选

We have never really nailed this down, I don't think.

我们还没解决这个问题

耶鲁公开课 - 聆听音乐课程节选