Dichlorobutylene
二氯丁烯
??? 情景例句
My day was just fine.
這一天還好。
A good conscience is a continual feast.
白日不做虧心事，夜半敲門心不驚。
It took me ten minutes to persuade her to ring back later.
我用了10分鐘的時間才說服她過會兒再來電話。