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
These are polite questions.
这些问题都是礼貌的。
Bread is the staff of life.
民以食为天。
I don't care where we go as long as we don't have to stand in line.
不管去哪里，只要不用站着排队就行。