a bolt out of the blue

1 The news of his death came as a bolt from the blue.

他死亡的消息好似晴天霹雳。

2 We are investigating the cause of the accident.

我们正在调查意外事件的原因。

3 A mere metion of the incident is a redrag to him.

一提到那个意外事件，他就发火了。

1 出人意料的事情

a bolt from of the blue

2 睛天霹雳

a bolt from of the blue

3 青天霹雳

thunderbolt out of a clear sky out of the clear sky a bolt from the blue