Qing
清；青（汉语拼音）
🗣️ 情景例句
Experienced, talented, retired.
有经验， 有才能， 退休了。
You are right!
答对了。
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。