Aggradated
a. 沖積的
??? 情景例句
My parents will think it's a good idea.
我的父母會覺得這是件好事。
In time of peace prepare for war.
居安思危。
but that was precisely the idea adopted in some of the early instruments (seismometers) for recording earthquake waves.
但是早期記錄地震波的儀器（測震儀）正是采用了這種思路。