Pnpndiode
[电] PNPN(四层)二极管
🗣️ 情景例句
I'll need a few minutes to check over my notes again.
我再需要几分钟来核对一下我的笔记。
Will the court acquit him of the crime?
法庭会宣判他无罪释放吗？
When you think of the innumerable birds that one sees flying bout,
你可以想象出天上有看得见的飞来飞去、数不清的鸟，