But in the real world of the warm and humid tropics, nighttime is slightly cooler than daytime.

但在温暖潮湿的现实世界中，夜晚只比白天稍微凉快一点。

Although summer weather can be hot, the weather is dry and much more comfortable than hot days in the humid tropics.

虽然夏季天气炎热， 但天气干燥， 比潮湿热带的炎热天气要舒服得多。

From the driest deserts to the most humid tropics, the powers of plants keep the proverbial lights on, maintaining the crucial flow of energy throughout the systems of our world.

从最干燥的沙漠到最潮湿的热带地区，植物的力量保持着众所周知的光明，维持着我们世界各个系统中至关重要的能量流。