Circuit sectionalizer
[电] 区分器
🧩 词语组成解析
分段隔离开关
🗣️ 情景例句
I'm on the top floor.
我在顶层。
I hope to see you again.
希望能再见到您
Now, this is the chemistry lab. Have you been in this lab before?
好啦，这是化学实验室。你们以前到过这个实验室吗？