Duplexor
[电] 双工器
🗣️ 情景例句
Hmm. I can't remember.
嗯， 我记不起来了。
As soon as he comes, we'll let him know.
他一来，我们就告诉他。
But he has not promised to give you any of his blood.
但是他并没有答应给你他身上的任何一滴血。