Mains switch
[化] 电源开关
🧩 词语组成解析
mains
[[meinz]]
n. 电源, 网路, 干线\\n[电] 输电干线
switch
[swɪtʃ]
n. 开关;转换，转换器;软鞭子;[信]接线台;
vt.& vi. 转变，改变;转换;关闭电流;鞭打;
vt. 转换;挥动（棍棒、鞭子等）;迅速转动;鞭打;
vi. 交换;调换;
🗣️ 情景例句
Please excuse me. I'm very sorry.
请原谅我， 我真的很不好意思。
I think he's no good.
我想他不行。
After that she helped her parents. She quickly cooked the supper, and cleaned the house.
之后她给父母帮忙。她很快煮好了晚餐，并把房子打扫干净。