1. 完全出于意外
7. drink till all's blue:一醉方休...8. out of the blue:完全出于意外...9. a bolt from the blue:晴天霹雳
2. 突然地
out of temper 发脾气...out of the blue 突然地...out of the common 不平凡
3. 出乎意料;突然
between the devil and the deep blue sea 进退维谷;左右为难...out of the blue 出乎意料;突然...the boys in blue 警察
4. 从天上掉下来
out of sorts 心绪不佳...out of the blue 从天上掉下来...
Something that happens out of the blue is sudden and unexpected. Example: "They seemed to be talking calmly when out of the blue she slapped him in the face!"
It is as if suddenly it started raining on a day when the sky was clear and blue. Example: "Why did she do that?" Reply: "I have no idea. It was completely out of the blue."
You are surprised and unprepared when it happens out of the blue. Example: "Did you know they would move you to a different project?" Reply: "Not at all. It was completely out of the blue."