Separatrix
n. [自] 分界线；分隔号
🗣️ 情景例句
Thank you very much.
谢谢你。
I asked him to stop, but he wouldn't.
我请他停止，但是他不肯。
One had winter we watched the river creep up the lower meadows.
有一年冬天，天气不好，我们眼看着河水浸没了地势较低的草场。