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once in a blue moon
千载难逢地
blue moon \blue moon"\
The second full moon occurring in the same month; -- derived
from the expression {once in a blue moon}; as, we had a blue
moon on January 31, 1999, and another in March.
[PJC]
{once in a blue moon} very rarely; -- from the observation
that the moon rarely has a bluish tint.
Note: In 1980, the phrase {blue moon} was applied to the
second full moon of any month, because this phenomenon
is unusual. This new meaning for the old phrase blue
moon has become widely accepted.
[PJC]
The second full moon occurring in the same month; -- derived
from the expression {once in a blue moon}; as, we had a blue
moon on January 31, 1999, and another in March.
[PJC]
{once in a blue moon} very rarely; -- from the observation
that the moon rarely has a bluish tint.
Note: In 1980, the phrase {blue moon} was applied to the
second full moon of any month, because this phenomenon
is unusual. This new meaning for the old phrase blue
moon has become widely accepted.
[PJC]
once in a blue moon
once in a lifetime
once in a way
once in a while
once more
once or twice
once over lightly
once run kerosene
once single plant sel...
once through
once through boiler
once too often
Once Upon
once upon a time
Once we dreamt that w...
once-and-for-all change
once-and-for-all effect
once-fired ware
once-firing
once-forbidden transi...
once-in-a-lifetime
once-in-a-lifetime ex...
once-over
once-over-lightly
once-reflected beam
once-reflected pulse
once-run distillate
once-run kerosene
once-run oil
once-through
once-through boiler
once-through conversion
once-through coolant ...
once-through cooling
once-through correcto...
once-through cracking
once-through design
once-through flowsheet
once-through fuel cycle
once-through material...
once-through method
once-through operation
once-through pipe still
once-through process
once-through reactor
once-through refuelling
once-through seal
once-through system
once-through type ste...
once-through uranium-...
oncer
Onchidiidae
Onchidiopsis
Onchocerca
Onchocerca caecutiens
Onchocerca cervicalis
Onchocerca gibsoni
Onchocerca volvulus
Onchocerciasis
onchocercoma
once in a lifetime
once in a way
once in a while
once more
once or twice
once over lightly
once run kerosene
once single plant sel...
once through
once through boiler
once too often
Once Upon
once upon a time
Once we dreamt that w...
once-and-for-all change
once-and-for-all effect
once-fired ware
once-firing
once-forbidden transi...
once-in-a-lifetime
once-in-a-lifetime ex...
once-over
once-over-lightly
once-reflected beam
once-reflected pulse
once-run distillate
once-run kerosene
once-run oil
once-through
once-through boiler
once-through conversion
once-through coolant ...
once-through cooling
once-through correcto...
once-through cracking
once-through design
once-through flowsheet
once-through fuel cycle
once-through material...
once-through method
once-through operation
once-through pipe still
once-through process
once-through reactor
once-through refuelling
once-through seal
once-through system
once-through type ste...
once-through uranium-...
oncer
Onchidiidae
Onchidiopsis
Onchocerca
Onchocerca caecutiens
Onchocerca cervicalis
Onchocerca gibsoni
Onchocerca volvulus
Onchocerciasis
onchocercoma
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中国词汇量第二的英语词典
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