youdao

youdao

You should be grateful for the extra job offer. Things like that come along only once in a blue moon.

你应该对额外的工作机会抱有感激之心：这样的事可是极其难得。

youdao

Occasionally it will be hundreds of millions and once in a blue moon billions.

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And then, every once in a blue moon, something comes along that is in a category all its own.

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Once in a blue moon, he tells me, he saw an iPhone.

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