n.  交通事故；车祸；失事

n.  事故，意外事件

• accidental

  a.  偶然的，意外的 ≠ deliberate

• by accident   偶然，意外地

  ≈ on purpose / deliberately

• the scene of an accident  事故现场

  reduce accidents  减少事故

• I met her quite by accident.

  我遇见她完全是偶然。

• Buy an insurance policy that covers accidental damage. 购买一份意外损害保单。

• B) It will not necessarily reduce road accidents. 减少道路事故

• He fell from a tall palm tree by accident. 

• The farm lost about 2.5 million bees. Dorchester County officials apologized for the accidental mass killing of bees.

BrE /ˈæksɪdənt/   

NAmE /ˈæksɪdənt/