俚语是指民间非正式、较口语的语句，是百姓在日常生活中总结出来的通俗易懂顺口的具有地方色彩的词语。地域性强，较生活化。通常用在非正式的场合。有时俚语用以表达新鲜事物，或对旧事物赋以新的说法。想说好英语，俚语是少不了滴，现在就随网小编一起学习有关于blue的俚语吧。

Out of the blue：出乎意料，所料不及

One day, out of the blue, she announced that she was leaving.有一天，她出人意料地宣布她要离开了。

Black and blue：被暴打了一顿，脸上青一块紫一块。形容打架斗殴或是练拳擦掌的时候都能用得到。

After Sam lost the wrestling match he was black and blue.山姆摔跤比赛结束后(脸上)青一块紫一块的。

A bolt from the blue：意外事件，晴天霹雳

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

他死亡的消息好似晴天霹雳。

Once in a blue moon.：难得，偶尔

Barry only visits his parents once in a blue moon.

巴里很难得去看望他父母一次。

Until you are blue in the face：徒劳无功

You can ask me until you are blue in the face, but I will not give it to you.

你可以拼命问我，但是我不会告诉你。

Once in a blue moon：可以用来回答平时喜欢做什么，做某事的频率之类的问题。

What do you usually do on the weekends?

I would spend most of my time with family in the park. We always keep our schedule tight and reserved for our family bonding especially on Saturdays. It has been a family tradition as well that helped us catch up and run away from the swamped of work we have on the weekdays.But once in a blue moon, I hang out with my friends to watch movies or go shopping.

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