accidents事故accidentn.事故；意外；偶然；造化accident inducements事故诱因accident occurrences偶然事故accident consequence事故后果accidents black spot事故多发路段accident legislation事故法规, 事故立法accident fluctuation意外变动accident-pronenessn.易出事故accident in coal mine煤矿事故accidented topography表面不平的地形accident reappearance事故再现