Frostnip
[医]冻结伤
🗣️ 情景例句
How I envy you.
我真是羡慕你。
I think you have very attractive children.
我认为你有很吸引人的孩子。
but that was precisely the idea adopted in some of the early instruments (seismometers) for recording earthquake waves.
但是早期记录地震波的仪器（测震仪）正是采用了这种思路。