Polystyrenes
(polystyrene 的复数) n. 聚苯乙烯\\n[化] 聚苯乙烯
🗣️ 情景例句
You should save some money in case of urgent need.
你应该存点钱以备不时之需。
Congratulations on your success in the election.
我恭喜你当选了。
It was not yet light, so it was easy to stay hidden.
天还没亮，所以很容易隐蔽。