石油污染对海洋渔业资源危害巨大，破坏土壤结构，影响生态平衡。
Petroleum pollution bring a great danger to ocean fishery resource, destroy the natural structure of soil and affect the ecological balance.
化学农药的不合理使用造成了严重的环境问题和食品污染，影响生态平衡，危害人类健康。
The improper use of chemical pesticides have resulted in serious environmental problems and food pollutions, affected the ecosystem balance and human being health.
化学农药的不合理使用造成了严重的环境问题和食品污染，影响生态平衡，危害人类健康。
The improper use of chemical pesticides has resulted in serious environmental problems and food pollutions, affecting the ecosystem balance and human being health.
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