Antimutagen
抗誘變因素
??? 情景例句
I waited for you for about a quarter of an hour.
我等了你差不多一刻鐘。
We must listen carefully to the teacher.
我們必須注意聽老師說的話。
This is a rare occurrence as our climate seldom guest to extremes.
但是在我們這里，氣候很少發生異常，河水極少泛濫。