Pnpndiode
[电] PNPN(四层)二极管
🗣️ 情景例句
You are wonderful with kids.
你对小孩子有一套。
I would like to write to the employment agency for a job.
我要写信给职业介绍所代我找一份工作。
Do me a favor?
帮个忙，好吗？