Sinal
a. [医]窦的
🗣️ 情景例句
My suggestion would be...
我的建议是……
Certainly not.
一定不是。
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。