Prehormone
n. [生化]前激素
🗣️ 情景例句
I have two days off a week.
我一星期休息两天。
How much is this?
这个多少钱？
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。