Out of the blue.
Out of the blue.
「Out of the blue」用來描述一件完全意料之外的事情或突然發生的事件。這個表達強調事情的突然性和出乎預料。
Wow, your call was totally out of the blue.
哇,你的電話完全讓我措手不及。
I received a gift out of the blue today.
今天突然收到了禮物。
When he showed up at my door out of the blue, I was completely surprised!
當他突然出現在我家門口時,我完全驚訝了!