土壤侵蚀是当前世界环境问题中的主要问题之一而备受关注。
The soil erosion is one of the key problems in current environment problem in the world but highly concerned.
大气酸性沉降物对土壤环境的影响，仍是当今世界环境问题的焦点之一。
The impact of acid atmospheric deposition on the environment is still one of the focus problems in the present world.
最好的解决世界环境问题的方法是增加燃料成本。在何种程度上你同意或者反对？
The best way to solve the world's environmental problems is to increase the cost of fuel. To what extent do you agree or disagree?
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