Sawtooth current
[电] 锯齿波状电流
🧩 词语组成解析
n. 锯齿
🗣️ 情景例句
My visa is multi-entry; it allows me to exit the country and then re-enter, as ofter as I like.
我的签证是往返签证，我可以随便进出这个国家。
I must play my spare time well, or I end up doing nothing.
我必须善于利用空闲的时间，否则生命将会在无所事事中告终。
When did you go home then?
那么你什么时候才回家呢？