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
Maybe we can spend some time together next weekend.
也许下个周末我们可以一起玩玩。
He may get a grant to study abroad next year.
他明年也许会获得留学奖学金。
If there had not been a hard layer of rock beneath the soil, they would have completed the job in a few hours.
如果不是因为土壤下面有一层坚硬的岩石，他们的营救工作仅用几个小时就可以完成了。