Human activity and the Earth There is no doubt that human activity has an effect on the planet.
人类活动与地球人类活动无疑会对地球造成影响。
The Earth does not have an inexhaustible supply of resources, so every effort should be made to conserve resources and limit the impact of human activity on the planet.
地球上的资源并不是取之不尽、用之不竭的，所以我们应该尽全力保存资源，限制人类活动对地球的冲击。
It is bring forward that the activity of human being have positive and negative actions to evolvements of earth.
就此本文予以讨论并提出人类活动对地球进化具有正反两方面作用。
Human activity is thus defiling the earth, and humanity may end up killing itself in the process.
人类活动正在污染着地球，因此，人类可能正处于毁灭自身的过程。
There is no doubt that the earth is becoming warmer (see Graph 1) and that it is human activity that has caused this global warming rather than a random but natural phenomenon.
毫无疑问，地球正变得更加暖和(见图表1)，而且全球转暖是人为的，而不是随意的自然现象。
Most human activity is about understanding what we can get from nature and pursuing commercial interests, but eventually if the earth, our home, no longer even exists, what use is so much money?
人类的大部分活动都是在东自然的索取，追求商业的利益，可如果到最后连我们这个地球家园都不存在了，要那么多钱来做什么。
As we begin to understand more about the Earth as a system, it is very apparent that human activity is having a profound and negative impact on our environment.
我们开始理解更多有关地球的东西作为一个系统，人活动正有深奥和负的对我们的环境的影响是非常明显的。
There is no doubt that the earth is becoming warmer and that it is human activity that has caused this global warming rather than a random but natural phenomenon.
毫无疑问，地球是在变暖，而地球变暖正是人类活动导致而成，并非是一种无规律的自然现象。
There is no doubt that the earth is becoming warmer and that it is human activity that has caused this global warming rather than a random but natural phenomenon.
毫无疑问，地球是在变暖，而地球变暖正是人类活动导致而成，并非是一种无规律的自然现象。
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