A coincidence is when two or more similar or related events occur at the same time by chance and without any planning.
例句
Mr. Berry said the timing was a coincidence and that his decision was unrelated to Mr. Roman's departure...貝里先生說(shuō)這是時(shí)間上的巧合，他的決定與羅曼先生的離開(kāi)沒(méi)有關(guān)系。...a string of amazing coincidences...一連串驚人的巧合