Submultiplex
分路调制
🗣️ 情景例句
The mailman just dropped some mail in our box, Grandpa.
邮差刚刚塞进一些信件在我们的信箱， 爷爷。
I'm afraid I have bad news for you.
恐怕我有坏消息要告诉您。
People had to use other ways to record information.
人们只得使用其他方法记录资料。