Epsilons
(epsilon 的复数) n. 希腊语字母之第五字
🗣️ 情景例句
I ate something bad, and now I've got the runs.
我吃了些变质的东西，所以现在拉肚子。
This window is just as wide as that one.
这扇窗户刚好和那扇一样宽。
For our purposes, we are concerned only with one kind of cost----
就我们的目的而言，我们只关心一种费用-