Once in a blue moon is an informal phrase.

Once in a blue moon（千载难逢） 是一个非正式短语。

Once in a blue moon. It doesn't mean that the moon is blue.

Once in a blue moon（千载难逢），它的意思可不是月亮是蓝色的。

Once in a blue moon is a common way of saying that something does not happen often.

once in a blue moon意思是某事不经常发生，这是一个很常见的用法。

" I do it once in a blue moon."

“我很少那样做。”

Once in a blue moon, we get two full moons in one-month, which typically occurs once every two or three years.

谈及蓝月亮，我们看到一个月中出现两次满月，这种情况一般两三年会发生一次。

These words all describe something that happens once in a blue moon.

这些词都描述了一件千载难逢的事。

My brother lives in Australia so I see him once in a blue moon.

我哥哥住在澳大利亚，所以我很少见到他。

If I say something happens " once in a blue moon, " it is uncommon, infrequent, rare.

如果我说某件事" once in a blue moon" ，那它就是不常见的，很少发生的，罕见的。

It should make for a really " bootiful" but eerie once in a blue moon Halloween night.

今年或许会过一个令人真正“毛骨悚然”的万圣节蓝月之夜。

So, once in a blue moon, you'll find me on the couch, watching movies and eating popcorn.

所以，你会发现我待在沙发上，看着电影，吃着爆米花，这是极为罕见的。

Once in a blue moon, it happens.

一旦发生在一个蓝色的月亮上，它就会发生。

Number 1; first one: " Once in a blue moon" .

1号; 第一个：“千载难逢” 。

It is rare enough that English speakers use the expression once in a blue moon to describe something that does not happen often!

这类现象极其罕见，因此，说英语的人常用“千载难逢（once in a blue moon）”形容少见的事情。

Remember or notice: if it's a long adverb, an adverbial clause like " once in a blue moon" , it goes at the end, right?

记住，如果它是一个长副词，一个状语从句，例如“once in a blue moon”，它要放在后面。

Blue Moon crew put your hands up, the phrase once in a blue moon can refer to the second full moon in a month.

“蓝月亮船员”请举手，“千载难逢”这个短语说的就是一个月内的第二次满月。

Once in a blue moon, we go out to see a movie.

千载难逢的时候，我们出去看电影。

Whereas before maybe once in a blue moon, I'd film a video of myself, send it to a friend, they'd reply a few days later.

而以前我可能会偶尔破天荒地给自己拍一段视频，发给朋友，几天后他们会回复。

And then the phrase once in a blue moon.

然后是千载难逢的短语。

You probably heard the saying, " once in a blue moon" .

您可能听说过“千载难逢”这句话。

" once in a blue moon" to describe something that does not happen often!

“once in a blue moon”来形容不常发生的事情！