Perfluoroallene
[化] 全氟丙二烯
🗣️ 情景例句
Peak hour traffie like this make traveling to work a real drag.
像这样的交通高峰期使得乘车上班非常缓慢。
Happy is the man that owes nothing.
无债一身轻。
I think it's green.
我想是绿色的。