Ppas
[医][=peripheral pulmonary artery stenosis]周围肺动脉狭窄
🗣️ 情景例句
We're off to the animal shelter.
我们这就去动物收容所。
Learning makes a good man better and ill man worse.
知识能使好人更好，坏人更坏。
Suddenly, there was a slight trembling sound from below, and the captain went down to see what had happened.
突然，从船舱下部传来一声微颤音，船长走下船舱去查看究竟。