Unduloid
波状体
🗣️ 情景例句
Is there a credit plan available?
我可以分期付款吗？
I'm looking for a temporary position.
我在找临时雇员的工作。
In those days, boxers fought with bare fists for prize money.
当时，拳击手们不戴手套，为争夺奖金而搏斗。