Polystyrenes
(polystyrene 的复数) n. 聚苯乙烯\\n[化] 聚苯乙烯
🗣️ 情景例句
if you don't mind listening.
假如你不介意听的话。
The plane has crashed.
飞机失事了。
'You should have declared that.
“你刚才应该申报，