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最佳答案：担忧的问题直接用concern就可以表示了Environmental issue is one of our most concerns.
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最佳答案：Today, the environment becomes worse and worse while this issue effects people's
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最佳答案：看我的!As the world environment becomes wosen, human beings face environmental poll
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最佳答案：英文就是蚊子，飞啊飞啊，烦都烦死了！祝福吧！
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最佳答案：How to put the energy to better use is one of the most important methods to solv
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最佳答案：At present,the environment pollution has become one of the world's most concerne
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最佳答案：With the increasingly more prominent environmental problems,JingTianKe plants as
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最佳答案："For the promotion of environmental pollution treatment technology development a
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最佳答案：In international trade,as the global eco-environmental issues is becoming increa
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最佳答案：Since people have not yet realized the importance of this issue,they often ignor