So how come birds don't get winded and run out of breath?

那为什么鸟类飞行的时候不会喘不过气来？

youdao

You might be winded doing it the second way, but when you get to the top and you are at the 60th story your gravitational potential is independent of how you got there.

对于走路你可能很抓狂，但你一旦到了顶层,你就是在第60层,你的重力势能,与你如何到达那里无关。

youdao

Playing with my kids outdoors winded me.And I began to get fat.I've reversed that trend, and am very active now, but I'm still trying to burn the fat I gained in those inactive years.

和孩子在室外玩耍令我得到了喘息，并且那时候我开始变胖，我已经保留了那种趋势现在很活跃，但是我仍然试着燃烧掉在那些不活跃岁月里积累下的脂肪。

youdao

You might be winded doing it the second way, but when you get to the top and you are at the 60th story your gravitational potential is independent of how you got there.

对于走路你可能很抓狂，但你一旦到了顶层,你就是在第60层,你的重力势能,与你如何到达那里无关。

麻省理工公开课 - 固态化学导论课程节选

And apparently I was out of the running because they insisted 007 shouldn't be addicted to barbecue potato chips and get winded after taking a flight of stairs.

NPR: Summary Judgment: 'Fast Food Nation', 'Casino Royale'

Memmer had noticed before the trip to the amusement park that he would get winded walking up the stairs in his home and had trouble keeping up with his kids while they were playing.

CNN: Man's change began when he couldn't fit in ride with son

Because we're in such a high altitude, and I get very easily winded, so I'm so much more focusing on actual respiration.

NPR: A Comic Horror Story from Aspen