accident
an unexpected and unpleasant event that happens by chance, usually causing damage or injury
事件
[名词]
disaster
a sudden and unfortunate event that causes a great amount of death and destruction
灾害
[名词]
coincidence
a situation in which two things happen simultaneously by chance that is considered unusual
巧合
[名词]
turning point
a point at which a drastic change occurs in a situation, especially one that makes it improve
改变生活的事件
[名词]
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