They said, are they out of porcelain? And I said 'Why,sure!'" William Wilhelmi made these boots with the slip cast method.

VOA: special.2009.09.09

I'll probably slip into talking about this experiment as though it's being done to me.

我会慢慢深入，像发生在我身上一样。

耶鲁公开课 - 死亡课程节选

Although I may occasionally slip, I'm going to try to preserve the word "Soul."

尽管我偶尔会提到,但我仍很少用"灵魂"这个词语

耶鲁公开课 - 死亡课程节选

If you decide to opt in by a pass fail, I just need to sign your white study card or if you wanna decide before the 5th Monday, just grab the pink slip and I can sign that and you can turn that in at any point and I'm happy to chat during break today or after class if you have any questions or concerns.

如果你上我们的课程只是要一个分数，那么我只需要在你的白卡片上签个名就可以了,或者说，如果在第五周的周一前还没考虑好，把你的解聘书拿来，只要我签个字,任何时候你都开以离开我的教室,当然，如果你有任何问题和疑虑,我也很高心和大家做课下交流。

哈佛公开课 - 计算机科学课程节选