The soil pollution by petroleum is a common problem in the world.
当今土壤的石油污染是一种较为普遍的现象。
But in the meanwhile, the environmental pollution is brought by petroleum industry also increasingly.
但与此同时，石油工业所带来的环境污染问题也日益严重。
But in the meanwhile, the environmental pollution is brought by petroleum industry also increasingly.
但与此同时，石油工业所带来的环境污染问题也日益严重。
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