Ratch
n. （防倒转的）棘齿
✅ 同义词
🗣️ 情景例句
that will bring parents and teachers together once a week
让家长们及教师每星期一次
Liberty often degenerates into lawlessness.
自由随便，经常堕落到无法无天。
It was called Saving the earth and it was all about the damage that is being caused to the world.
会议叫“拯救地球”，所以全是有关地球遭受破坏的事情。