Phy
abbr. 物理层；物理层协议（Physical Layer）
🗣️ 情景例句
We also like to know
我们还想知道，
I am afraid I will not be able to accompany you.
我恐怕无法跟你在一起了。
Oh, there's the conductor. Do you have your ticket?
啊，列车员来了。票在你那儿吗？