嗨，我知道这个地方！

Hey, I know where this place is.

youdao

我知道这个地方，因为它在我的小屋旁边，并且众所周知这儿是大海鳗生活的地方。

I know this place because it is near my hut and it is well known as a place where conger eels live.

youdao

我知道，但是在这个镇上没有别的地方可去了。

I know, but there isn't anywhere else in this town.

youdao

Oh, I know this. I've been here before and I know this place very well,

哦，这个我知道，我去过那里，我对那个地方很熟悉。

remind me of 课堂 - SpeakingMax英语口语达人

I would say, okay, this guy wants me to find a function which reduces to the number a when I take two derivatives, and I know somewhere here, this result, which says that when I take a derivative, I lose a power of t.

出题者想要我找出一个函数,它在经过两次求导后得到数字a,我知道这里的某个地方,这个结论告诉我,我每求一次导,t就降一次幂

耶鲁公开课 - 基础物理课程节选