Unsaturated bond
[化] 不饱和键
🧩 词语组成解析
a. 没有饱和的, 不饱和的
🗣️ 情景例句
What's the starting salary in your company?
在你的公司底薪是多少？
Which do you prefer, fishing or mountain-climbing?
钓鱼和登山，你更喜欢哪一个？
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。