| 单词 | blue moon |
| 释义 | blue moon (once / 28008 pages) n WORD FAMILY blue moon: blue moons USAGE EXAMPLESWe’ve all heard the saying “once in a blue moon,” but what does that really mean? New York Times(Nov 11, 2016) The 37-year-old is the founder of Blue Moon, a company that designs clothes, bags and trinkets with locally produced indigo dye. BBC(Nov 09, 2016) It’s the opposite of a blue moon, which is often defined as the second full moon in a month. National Geographic(Oct 28, 2016) n a long time something that happens once in blue moon almost never happens Hyper age, long time, years a prolonged period of time |
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