Phy
abbr. 物理层；物理层协议（Physical Layer）
🗣️ 情景例句
Richard showed me your photo.
Richard给我看了你的照片。
Marriage goes by contrasts.
夫妻之间难免有差异。
but it is of a kind that, if he meets it, he can readily understand and deal with.
但如果有这种情况，露营者也容易理解，知道如何对付，