Acroleic
a. 丙烯
🗣️ 情景例句
Hi-tech companies needs many interns to work for them during the summer.
高科技公司在夏天需要许多见习生为其工作。
No one is wise at all times.
人总有一时之失。
No, it isn't! That's a cat!
不，不在！那是一只猫。