Phy
abbr. 物理层；物理层协议（Physical Layer）
🗣️ 情景例句
We had a cat when I was eight years old.
我八岁时养过一只猫。
I will be visiting London in March.
我将在三月份访问伦敦。
Yes, I see. How can they get rid of waste water in this way? What a terrible colour the sea is now! It looks as if our class won't be able to bathe at all.
是的，我看见了。他们怎么能这样排放废水呢？海水的颜色多么可怕呀！看来我们班同学根本不能在这里游泳。