Ratchets
n. （防倒转的）棘齿( ratchet的名词复数 )\\nv. （防倒转的）棘齿( ratchet的第三人称单数 )
🗣️ 情景例句
Thank you.
谢谢。
I wish you happiness.
祝你幸福。
I spent the whole day in my room, but I did not write a single card!
我在房间里关了整整一天。然而竟连一张明信片也没写成！