引发事故的间接原因是火车晚点。
The accident was the indirect result of the train being late.
高强度暴雨、低的森林覆盖率和严重的水土流失，是产生洪灾的直接和间接原因。
Great storm and small forest cover are direct and indirect reasons why flood occurs.
高强度暴雨、低的森林覆盖率和严重的水土流失，是产生洪灾的直接和间接原因。
Great storm and small forest cover are direct and indirect reasons why flood occurs.
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