With the progress in time, this disposal site has become a hidden trouble having a potential to cause a major contamination accident, which would lead to the worst social impact.

随着时间的推移，这一“处置场”成了一个可能产生重大污染事故的隐患，造成不良的社会影响。

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There is a huge potential risk during transport of dangerous goods, which could cause serious consequences in the event of an accident.

危险品在运输过程中，存在着巨大的潜在危险性，一旦发生事故，将造成严重后果。

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More common, though still infrequently, Mr. Doyle said engineers notice an unusual bump or hitch in the rails as they drive along, and flag a potential problem before it can cause an accident.

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