When summer comes, the air is stuffy and the temperature is so high. Thanks to the invention of air-condition, people are no longer suffer to the hot weather, they can stay at the indoors and enjoy the coolness that air-condition brings. But the problem comes, when people count on air-condition for a long time, their bodies will be weaker. Some people feel dizzy and have no strength to do their work, some people are easy to catch the cold. All of these symptoms are typical illness which is from air condition. Though air-condition brings us comfort, we will get sick if we use it all the time. We need to go outside often, even is hot, what’s more, taking exercise is needed. The natural environment is suitable for us to live in, we can’t count on air-condition for a long time.

当夏天到来的时候，空气很闷热，气温也很高。多亏了空调的发明，人们再也不用忍受闷热的天气，他们可以呆在室内，享受着空调带来的凉意。但是问题也来了，当人们长时间依赖空调，他们的身体会变弱。一些人感到眩晕，没有力气去工作，一些人很容易感冒。所有的这些症状都是空调带来的典型病。虽然空调给我们带来了舒适，但是如果我们长时间使用空调，就会生病。我们需要经常走出室外，即使天气很热，也需要参加锻炼。自然的环境是最适合我们居住的，我们不能长时间依赖空调。

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