英语词汇“differential fertility”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	differential fertility
释义	differential fertility noun : variation in fertility of different groups or classes in the population < relation of economic status to differential fertility >
随便看	crew neck crew neckline crew-served crew sock crex cri criant crib crib cribbage cribbage cribbage board cribber cribbing crib-bite crib-biter crib-biting cribble cribbled crib death cribellar cribellatae cribellate cribellated cribellum

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