Acrylyl
[化] 丙烯酰基
??? 情景例句
After the marathon, most of the competitors looked all in.
跑完馬拉松，大多數(shù)參加比賽的人顯得疲勞不堪。
What do you do in your spare time?
空閑時間你干什么？
What's it made of?
它是用什么做的？