Pnpndiode
[电] PNPN(四层)二极管
🗣️ 情景例句
I'll take this green sweater.
我买这件绿毛衫吧。
This has been a very confusing time in my life.
现在，是我的人生中最混乱茫然的时期。
One night, however, feeling cold and lonely,
可是，有一天夜里，我感到又冷又孤单，