Fluoroethanoic acid
[机] 氟乙酸
🧩 词语组成解析
🗣️ 情景例句
I'm glad to make you acquaintance.
我很高兴认识你。
I don't believe it.
我才不信咧！
It's a very old castle. It is the oldest one in Britain.
这个城堡很古老，它是英国最老的了。