Sectionalizer
分段隔离开关
🗣️ 情景例句
Hi, Alexandra. Come on in.
嗨， Alexandra 。请进。
My brother is a member of the faculty.He teaches economics.
我的兄弟是全体教员中的一员，他是教经济学的。
The vicar has been asked to have the tree cut down, but so far he has refused.
人们曾请求教区的牧师叫人把树砍掉，但他直到现在也没有同意。