Oscillating vector
[电] 振荡向量
🧩 词语组成解析
[计] 振荡的
🗣️ 情景例句
and wrote to his wife Martha.
给他妻子Martha写信。
If you're not sure how to do is, ask me.
假如你拿不准怎样做，就来问我好了。
What?
什么？