Hexafluorobenzene
[化] 六氟苯; 六氟代苯
🗣️ 情景例句
He studied harder to improve his English.
他更加努力提高英语水平。
The room is always a mess after the children have been playing in here.
儿童玩过之后的房间，通常都是乱糟糟的。
Let go!
放手！