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单词	bluethroat
释义	bluethroat /ˈbluːθrəʊt / noun A songbird resembling the robin, found in northern Eurasia and Alaska. The male has a blue throat with a red or white spot in the centre. Luscinia svecicus, family Turdidae. Furthermore, in bluethroats, European starlings, and blue tits female choice for males with greater UV reflectance appears to favor structural plumage traits.... In many passerine species, including bluethroats, male removal results in an overall reduction in food supply. A lost waif and stray of extraordinary beauty turned up in Aberdeen and made the front page of two national newspapers: a bluethroat looking enchantingly like a robin that had been coloured in wrong.
随便看	presidentialist presidentially Presidential Medal of Freedom Presidential Range presidential year presidentiary president pro tem president pro tempore presidentress cotton gin cotton grass cotton lavender cotton-leaf worm cottonmouth cottonmouth moccasin cotton-picking cotton plant cotton rat cottonseed cotton spinner cotton stainer cotton state cotton swab cottontail cotton waste

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