Pnpndiode
[电] PNPN(四层)二极管
🗣️ 情景例句
I'm fresh out of college.
我刚从大学毕业。
If it's not too much trouble, I would like some help.
如果你不嫌麻烦的话，我想请你帮个忙。
This car is in good condition.
这车性能很好。