Complementarity
n. 互补性, 互为补充\\n[经] 互补性
🗣️ 情景例句
We have no collateral.
我们没有担保物。
Grasp the nettle and it won't sting you.
困难像弹簧，你硬它就软。
It must have been a gas that could burn but that would not explode, a gas that did not smell strong, and a gas that did not kill people.
它一定是一种能够燃烧而不能爆炸的气体，一种味道不很强的而且不使人致死的气体。