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标题:雅思四个7 自拍照 pTE 自拍照 CAE 自拍照全部上线，需要联系
正文:
Scientists have for decades contributed so much to social development for human being with modern technology. But this time around, they must confess that the world faces big environmental problems, and they in turn have to find effective solutions. Some people insist we ourselves should change our own lifestyles to reduce pollution or energy waste, while others still count on governments. I believe both should play their parts for the sake of human being.
Firstly, modern lifestyles should be responsible for environmental issues. For instance, when we enjoy the comfort and convenience of modern transportation means, particularly automobiles, a large amount of exhaust gas released will result in serious air pollution. Also, what humans take from the environment may lead to bad consequences, in the form of land for agriculture, mineral and fossil fuel resources or  timbers. Nowadays we are surrounded by threats from deforestation, erosion, damage to ecosystems and reductions in biod
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