Impurity semicomductor
[电] 杂质半导体
🧩 词语组成解析
🗣️ 情景例句
Oh, Daddy!
噢， 爸爸！
I'm an intelligent cat.
我是一只精明的猫。
This would solve the problem of ventilation, for if a train entered this tunnel, it would draw in fresh air behind it.
因为如果有列火车开进隧道，它就把新鲜空气随之抽进了隧道。