Fluoroalkane
[机] 氟烷
🗣️ 情景例句
Hello.
哈喽。
He who follows two hares is sure to catch neither.
追逐两只兔，两头都落空。
We've seen several members of the family since we arrived my grandfather and my aunt and uncle.
自我们回来以后已经见到了好几个家庭成员祖父、姑姑和叔叔。