n.意外事件,事故,机遇，偶然,附属品
Captain Cook safely navigated his ship without accident for 100 voyages.
库克船长驾驶的船安全出航100次无事故。
Through some unfortunate accident, the information reached me a day late.
由于发生了不幸的意外，我知道消息的时候已经晚了一天。
The police say his death was an accident, officially at least.
警方说他的死是个意外，起码官方消息如此。