Carbobenzoxy
[建] 苯酯基
??? 情景例句
This is a tough job.
這是一件困難的工作。
One cannot make a silk purse out of a sow's ear.
朽木不可雕。
The episode could reasonably serve as a unique epic of royal espionage!
這一幕歷史可以說是王室諜報活動中最精彩的篇章。