然而，羽毛的稀疏分布也使得皮肤表面形成相当大量的侧向空气流动，从而可以通过对流进一步散热。
The sparse distribution of the feathers, however, also allows considerable lateral air movement over the skin surface, thereby permitting further heat loss by convection.
在对流层中，高海拔地区的空气通常比低海拔地区的空气冷。
In the troposphere, the air at higher altitudes is in general cooler than the air below it.
在晚上，打开窗户或者用风扇让空气保持对流，让凉快的晚风能够穿过房子。
In the evening, open windows and use fans to create a cross-breeze, circulating cooler evening/night air through the rooms.
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