Ratch
n. （防倒转的）棘齿
✅ 同义词
🗣️ 情景例句
I think it's about time we got going.
我想差不多是告辞的时候了。
To plan a mountain climbing expedition.
计划登山探险。
Excuse me. Is there a post office near here?
请问，附近有邮局吗？