( blue babies)
A blue baby is a baby whose skin is slightly blue because it has been born with something wrong with its heart.
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( blue babies)
A blue baby is a baby whose skin is slightly blue because it has been born with something wrong with its heart.
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Collins COBUILD Advanced Learner's English Dictionary. Английский словарь Коллинз COBUILD для изучающих язык на продвинутом уровне. 2006