Pnpndiode
[电] PNPN(四层)二极管
🗣️ 情景例句
I have no problem with that.
对这一点我没有异议。
After death, the doctor.
放马后炮。
of a change of atmosphere, of a diversion of effort, is essential.
改变一下气氛，转移一下注意力，这是不可缺少的。