They expand when inhaling air, and contract when exhaling air.

它们在吸入空气时膨胀，在呼出空气时收缩。

And anoles rebreathe by exhaling air from the lungs into this thin pocket of air.

anoles 通过将肺部的空气呼出到这个薄薄的气囊中来进行再呼吸。

It travels through the bloodstream to tiny air sacs in the lungs, passing into exhaled air at a concentration 2,000 times lower, on average, than in the blood.

它通过血流到达肺中的微小气囊，进入呼出的空气中，其浓度平均比血液中的浓度低2，000倍。

I beat the prison dust off my feet as I sauntered to and fro, and I shook it out of my dress, and I exhaled its air from my lungs.

我来回晃动着脚上的监狱灰尘，把它从裙子里抖出来，从我的肺里呼出它的空气。

If they contract strongly, more blood will be ejected and the end-systolic volume will be lower - just like forcefully exhaling air from your lungs leaves less air in your lungs than exhaling normally.

如果它们强烈收缩，会喷出更多的血液，收缩末期的容积也会降低——就像从肺里用力呼气比正常呼气少。