a blue moon

He gives us a treat only once in a blue moon.

他招待我们一顿可真是千载难逢.

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In the city met you is real once a blue moon!

在这个城市里能遇到你真是太难得了!

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I miss my aunt sue. I only see her once in a blue moon.

我想念我的姨妈，苏。我只有久久才见她一次。

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Where have you been? I haven't seen you in a blue moon.

你到哪儿去了? 我好久没见到你了.

《简明英汉词典》

According to popular definition, a blue moon is the second full moon in a month.

按照家喻户晓的说法，蓝色的月亮是在一个月内第二次满月。

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Don't give up a such a good opportunity; it only comes once in a blue moon.

不要放弃这个好机会；那是非常难得的。）（当副词用）

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I don't know why he bought that membership card, he uses it once in a blue moon.

我不知道他为什么买那张会员卡，他基本不用的。

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Outside the moon is high with a dark-blue sky behind it and with mountains, plains, and forests of silver lying below.

窗外，月亮挂在深蓝色的天幕上，天幕下是银色的山峦、平川和深林。

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Such a chance comes once in a blue moon.

这样的机会极其难得.

词典精选例句

By living a blue moon with the Indians, he was assimilated to them in his thinking and actions.

由于长期和印第安人共同生活, 他在思想和行动上都被他们同化了.

《简明英汉词典》

Eg . Seeing the partial eclipse is once in a blue moon.

看见月偏食真是个千载难逢的事.

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I cook once in a blue moon!

我很少做饭！

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Should say, it is the traditional culture to obtain the optimal timing of development once in a blue moon.

应该说，现在是传统文化获得发展的千载难逢的最佳时机。

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The schoolmaster said that he was able to go to a play only once in a blue moon.

这位校长说，他难得有空去看戏。

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Such a chance comes once in a blue moon. Fat chance I can get a thicket for the concert.

这样的机会极其难得。我很难有机会得到音乐会的票了。

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I seldom go to a movie-maybe once a blue moon.

我很少去看电影,难得去一回.

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A blue moon is a colloquial term applied to the second full moon in one month.

一个蓝色的月亮是一个不太正式的俗语，用于描述在同一个月里面看到两次圆月。

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He passes his exams once in a blue moon!

他很少通过他的考试！

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You get a chance like this only once in a blue moon.

这种机会你是很难得到的.

词典精选例句

He only comes here once in a blue moon.

他只是偶尔到这儿来一次.

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Great writers like Mark Twain only appear once in a blue moon.

(像马克吐温那样伟大的作家,是很罕见的. )

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This is a chance once in a blue moon.

这可是个难得的机会.

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The development of information networking has not only brought about good opportunities once in a blue moon but also severe challenges to the Chinese economic development.

信息网络化的发展给中国经济的发展带来了千载难逢的大好时机，但同时也给中国经济的发展带来了严峻的挑战。

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Once in a blue moon you get some problems.

极少会碰到麻烦。

《柯林斯高阶英汉双解学习词典》

Stamp collecting is interesting, but you find a valuable stamp only once in a blue moon.

集邮是很有趣的事情，但一张有价值的邮票却是千载难逢的。

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It was an opportunity that comes once in a blue moon.

这种机会来一次可太难了.

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I have almost forgotten what Jack looks like. I see him once in a blue moon now.

我几乎已经忘了杰克的模样。到现在我只极难得地见过他一次。

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That sort of thing only happens once in a blue moon.

这种事情难得发生一次.

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He gets drunk only once in a blue moon.

他难得喝醉酒.

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The story is just a blue moon.

这个故事根本就是件不可能的事.

《简明英汉词典》