Ratcheting
棘轮效应, 齿合, 联轴节, 离合器
🗣️ 情景例句
It's nice to meet you.
很高兴见到你。
Jean's mother warned her that men would try to take advantage of her.
琼的母亲警告她，男人会占她的便宜。
Goodbye, Dr Zhang.
再见，张医生。