Heterojunction
[计] 异质结
🗣️ 情景例句
Sorry, Richard. They don't have it.
对不起 Richard 他们那里没有。
Who has never tasted bitter, knows not what is sweet.
不尝黄连苦，怎知蜂蜜甜。
Some devices were quite simple.
有些装置非常简单。