Phy
abbr. 物理层；物理层协议（Physical Layer）
🗣️ 情景例句
It's tough getting an O.K. from the boss.
很难从老板那听到声“同意”。
A good tongue is a good weapon.
伶俐的口齿是一种锐利的武器。
Er, is it under that window?
是在窗户下面吗？