Fluorocarbon-14
[建] 四氯化碳
🧩 词语组成解析
[建] 碳氟化合物
fourteen
🗣️ 情景例句
Are they open?
店开着吗？
A wise man changes his mind, a fool never will.
智者通权达变，愚者刚愎自用。
When he travelled across India, he travelled hard-seat, unreserved, together with peasants and other ordinary people.
当他穿越印度旅行时，他与农民及其他普通人一起乘坐"没有被预定的硬座。