Cyacetacide
[化] 氰乙酰肼
??? 情景例句
It's good! It's this Sunday at 7.
好極了。宴會再本周日7點。
Two heads are better than one.
集思廣益。
It kept repeating the steps over and over.
蜜蜂一而再，再而三地重復(fù)它的"舞步。