Pau
abbr. 泛美联盟（Pan American Union）
🗣️ 情景例句
I'm on the top floor.
我在顶层。
You cannot clap with one hand.
孤掌难鸣。
The plane was then able to rise and it cleared the mountains by 400 feet.
于是飞机可以上升了，它在离山头400英尺的高度飞越了过去。