Altemating megnetic flux
[电] 交变磁场
🧩 词语组成解析
🗣️ 情景例句
I know that.
我知道。
Well, it's too bad that you have to go.
哦，真遗憾，你一定要走。
Shall I keep him away from school?
我是否要他不去上学？