Pnpndiode
[電] PNPN(四層)二極管
??? 情景例句
She finished the race strongly.
她很有毅力地跑完了全程。
In face, I am still not sure if I really deserve this honor.
事實(shí)上，我還是不敢確信我是否真的堪當(dāng)這個(gè)獎(jiǎng)賞。
he instructs the bank to debit his account only in respect of cheques drawn by himself.
囑咐銀行他的存款只能憑他本人簽字的支票來提取。