Fluorines
(fluorine 的复数) n. 氟\\n[化] 氟
🗣️ 情景例句
It's going to be a piece of cake.
这种事不费吹灰之力。
True love kythes(=shows itself)in time of need.
患难显真情。
The tunnel would be well-ventilated if tall chimneys were built above sea level.
隧道就具备了良好的通风条件。