Ratch
n. （防倒转的）棘齿
✅ 同义词
🗣️ 情景例句
The wedding ceremony is about to begin.
婚礼就要开始了。
I hope my visit does not cause you too much trouble.
我希望这次来参观没有给你们增添太多的麻烦。
Otherwise we won't be able to hear ourselves talk.
否则我们的谈话彼此就都听不到了。