n.粗心大意；xa0草率；xa0快活；xa0淡漠

His carelessness led to the accident.
他的粗心大意导致了这次事故。
The mistake was due to pure carelessness.
这个错误纯粹是因为粗心大意。
The loss of important documents was a result of his carelessness.
重要文件的丢失是由于他的疏忽。
She attributed her failure on the test to carelessness.
她将考试失败归咎于自己的粗心。
The fire was caused by careless smoking.
这场火灾是由吸烟不慎引起的。
His carelessness cost him the job opportunity.
他的粗心大意使他失去了工作机会。
The spillage of coffee was an outcome of my momentary carelessness.
咖啡溅出来是我一时疏忽的结果。
The athlete's disqualification was a consequence of his carelessness during the race.
这位运动员因在比赛中粗心大意而被取消资格。
The teacher criticized the student for his careless handwriting.
老师批评学生字迹潦草，不够认真。
The car's engine overheated due to the driver's carelessness in checking the coolant level.
汽车引擎过热是因为司机在检查冷却液水平时的疏忽。