Summing amplifier
[计] 加法放大器
🧩 词语组成解析
[计] 求和
🗣️ 情景例句
Here are the samples for your examination.
这里是样品，请查看。
Did you wash youself?
你自己洗的？
He was absent on Monday,Tuesday,Wednesday and Tuesday.How are you all keeping?
星期二、星期三和星期四没去上学。你们身体都好吗？