Fluctuating voltage
[电] 增减起伏电压
🧩 词语组成解析
v. 波动（fluctuate的ing形式）
🗣️ 情景例句
I'm in charge of the sales department.
我主管销售部。
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？
Who is going to sign the contract for your side?
谁代表你们这一方签约？