Separatrix
n. [自] 分界线；分隔号
🗣️ 情景例句
Studying is a big boring, but it sure beats the unemployment queues.
学习是有点枯燥，但比起失业来好多了。
We used to have a lot of interesting friends.
我们过去常有很多有趣的朋友。
Please don't touch the machines.
请不要摸这些机器。