求翻译：婴儿生长发育迅速，需要更充足的营养来满足其快速生长发育的需要，但婴儿的消化系统及排泄器官发育尚未成熟，世界卫生组织建议纯母乳喂养到6个月，然后开始逐渐添加谷类等食物。国家卫生与计划生育委员会2014年公布的数据显示，中国母乳喂养率在16年间下降了近40%，我国0~6月婴儿纯母乳喂养率为27.8%，其中农村为30.3%，城市仅为15.8%，远低于国际平均水平。许多国家已经制定或修订婴幼儿喂养指南，强调母乳喂养、辅食添加等在婴幼儿营养、健康状况等方面的重要作用。是什么意思？

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The rapid growth of the infant, the need for more adequate nutrition to meet their fast-growing developmental needs, but the baby's digestive system and excretion organ development is not yet mature, and the World Health Organization recommends breastfeeding to six months and then gradually add etc.

The baby grows the growth to be rapid, a need more sufficient nutrition satisfies its fast growth growth the need, but baby's digesting system and the excretory organ growth not yet is mature, the World Health Organization suggested the pure mother's milk feeds to 6 months, then starts to increase f

Infants quickly, need more nutrition to meet the needs of its rapid growth, but the baby's digestive system and excretory organ development is not yet mature, the World Health Organization recommends exclusive breastfeeding to 6 months, and then begin to gradually add cereal and other food. 2014, ac

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