Hydantoin
n. [化]乙內酰脲
??? 情景例句
because she's had to go to Chicago on a business trip and can't leave till tonight.
因為她得到芝加哥出差，而且要到今晚才能脫身。
Well, the worst of the winter should be over.
不過，冬天最糟糕的一段日子總該過去了。
Though they may atttain considerable accuracy in the perception of flat form,
雖然他們對平面形的感覺能達到相當準確的程度，