Variable attenuator
[电] 可变衰减器
🧩 词语组成解析
n. 衰减器\\n[化] 衰减器; 弱化子
🗣️ 情景例句
How long does it take you to get through a letter?
你写一封信要花多少时间？
He was at a loss for words.
他不知道该说什么好。
He acted as if he had never lived in England before.
他的举动就好像他从未在英国生活过一样。