煤矿安全事故频发给无数家庭带来了灾难，也给社会造成了严重的经济损失。
1·One has to consider the chance of a mischance.
人都必须考虑灾难的可能性。
2·The hope and despair of life, the exaltation and listlessness of love, the nation's aspirations and mischance, which stand in contrast and conflict, are interwoven and mingled in his poems.
生的希望与绝望、爱的欣喜与怅惘、民族的期待与灾难等都在他的诗中交织、扭结、矛盾和冲突。
3·This mischance made this area result in ruins and discommodious traffic.
这场灾难使这一地区变为废墟并使该地区的交通陷入瘫痪。