Backward voltage
[计] 反向电压
🧩 词语组成解析
🗣️ 情景例句
I have to run.
我得赶紧走了。
Measures should be taken to reinforce the cartons.
应采取措施加固纸箱。
Even men who can hardly drive a nail in straight are supposed to be born electricians, carpenters, plumbers and mechanics.
甚至那些连一枚钉子都钉不直的男人都被认为是天生的电工、木匠、水管工和机械师。