Pnpn transistor
[电] PNPN晶体管
🧩 词语组成解析
🗣️ 情景例句
It's Grandma's recipe.
这是奶奶的配方。
Call me tomorrow if you have time.
明天要有时间就给我打个电话。
Fortunately, the shouting woke up my wife who opened the window just as the policeman had started to climb towards me.
幸运得很，这喊声惊醒了我的妻子。就在警察开始向我爬上来时，她打开了窗子。