我们地球上的资源是有限的。
我们也知道地球上的资源是有限的，环境是脆弱的。
And we also see that our world is rare in its resources and fragile in its environment.
但他却没有意识到，地球上的资源是有限的，他潇潇洒洒所花的钱凝聚了父母多少的血汗。
But he did not realize that Earth's resources are limited, and he spent the money Xiaoxiao Sasa gather parents how much blood and sweat.
地球上的自然资源是有限的，所以人们应该明智地利用它们。
Natural resources on the Earth are limited, so people should use them wisely.
由于人们没有意识到地球上的水资源是有限的，因此人们每天浪费了大量的水。
People, not realizing that water resources on the earth are limited, waste a great amount of water every day.
众所周知，谁是生命之源。而且地球上可利用的水资源是有限的。
It is known to us all that water is the source of life. And the available water resources on the earth are quite limited.
由于地球是一个相对的封闭系统，所以，在地球上的环境资源供给量是有限的。
For the sake of the earth is relatively close-system, the environment resource is limited on the world.
地球上的自然资源是有限的。
地球上可供开采的天然水资源是十分有限的。
Natural water resources that can be exploited in the earth are extremely limited.
地球上的水资源是有限的，是不可替代的人类生存的基础资源。
The water resource has a finite and cannot be substituted for human living.
我们的人口和我们对地球上的有限资源的利用，都在急剧增长。同时增长的还有我们改造环境的技术水平，无论这种改造是好是坏。
Our population and our use of the finite resources of planet Earth, are growing exponentially, along with our technical ability to change the environment for good or ill.
据认为，地球上的水资源是有限的。
It is believed that the water resources on the earth are limited.
地球上能源是有限的，尤其石油资源是不可再生的，因此石油成为全球性战略物资。
As the energy on the earth is limited, especially the oil resource is non-renewable, therefore the petroleum becomes a global strategic resource.
地球上能源是有限的，尤其石油资源是不可再生的，因此石油成为全球性战略物资。
As the energy on the earth is limited, especially the oil resource is non-renewable, therefore the petroleum becomes a global strategic resource.
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