Precalculus
a. & n.學(xué)習(xí)微積分前必修的(課程)
??? 情景例句
Do you ever think about other people?
你從來就不考慮考慮別人嗎？
Why didn't you go?
為什么你不去？
I know you make things. But what do you make?
我知道你會(huì)做東西，但是你都做些什么呢？