Fluctuating noise
[电] 增减起伏杂音
🧩 词语组成解析
v. 波动（fluctuate的ing形式）
noise
[nɔɪz]
n. 噪音;嘈杂声，喧闹声;声音，声响;杂音;
vt. 谣传;哄传;传说;
vi. 发出声音;大声议论;
🗣️ 情景例句
you used to be in the construction business.
你过去在建筑界工作。
A cracked bell can never sound well (is never sound).
破钟无好音。
Was it cold yesterday?
昨天天气冷吗？