中文翻译与英英解释

极长的一个时期。

blue:    adj. 1.青，蓝，蓝色的，天蓝色的；(脸色)发灰[青 ...

moon:    n. 1.月,月球,月亮。 ★ 1. 语法上常作女性处理 ...

a long time; "something that happens once in blue moon almost never happens"

A blue moon is a second full moon in a single calendar month, which happens every two to three years. The rarity of this astronomical event derives from the length of the lunar cycle, 29.

例句与用法

You get a chance like this only once in a blue moon .
这种机会你是很难得到的。

I see her once in a blue moon .
我难得看到她。

If the river overflows its banks, the garden gets flooded; but that only happens once in a blue moon .
如果河水漫过两岸，庭园就要淹没，不过那只是千载难逢的事。

Barry only visits his parents once in a blue moon
巴里很难得去看望他父母一次。

This band comes to my town once in blue moon
这个演唱小组难得来我们镇上一次。

It was an opportunity that comes once in a blue moon
这种机会来一次可太难了。

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！

I go to a restaurant once in a blue moon
我难得在外吃饭，也极少在饭店用膳。

Now , it is their first time here at the blue moon ,
这是他们在篮月亮的第一次

I can ' t help but sneak a fag once in a blue moon
很少时候我会这样不能自拔的抽上一根