Pnpndiode
[电] PNPN(四层)二极管
🗣️ 情景例句
Yes. They reached us yesterday.
是的，昨天我们收到这批货物。
Son! Don't make suck a noise when you eat.
儿子，吃饭的时候不可以发出声音。
But even the mosquito has been subdued by attention to drainage and by chemical sprays.
然而即使蚊子，也由于我们注意清理污水和喷洒化学药品而被制服了。