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Several factors have been adduced to explain the fall in the birth rate.有几个因素已被援引来说明出生率降低的原因。The UK has the highest birth rate among 15 to 19-year-olds in Western Europe.在西欧，英国女性在15到19岁之间生育率最高。Women's total birth - ...
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birth rate的复数形式为：birth rates...
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birth rate的音标：birth rate的英式发音音标为：[bə:θ reit]birth rate的美式发音音标为：[bɚθ ret]...