Ferroresonant circuit
[电] 含铁共振电路
🧩 词语组成解析
🗣️ 情景例句
I majored in economic and trade English.
我主修的是经贸英语。
How long has it been since you've heard from your uncle?
自从你听到叔叔的消息有多长时间了？
I was standing at the back, so I couldn't see very well.
我站在后面，看不清。