Poeodynamics
[医] 呼吸动力学
🗣️ 情景例句
What's wrong?
怎么了？
After forty years teaching English he thinks it's time to call it a day.
他教英语四十年，认为该退休了。
I sat in the front of the bus to get a good view of the countryside.
我坐在汽车的前部，以便饱览农村风光。