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母体适量充足的铁储备是维持正常妊娠的必要条件。
Sufficient amount of maternal iron store is the necessary condition to maintain the normal pregnancy.
youdao
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母体适量充足的铁储备是维持正常妊娠的必要条件。
Sufficient amount of maternal iron store is the necessary condition to maintain the normal pregnancy.
youdao