Vitamin K is routinely given in the first week of life to prevent bleeding.

维生素K要在婴儿出生的第一周内常规性地补充以防出血。

《柯林斯英汉双解大词典》

Three quarters of all newborn deaths occur in the first week of life.

所有新生儿死亡中有四分之三发生在生命第一周。

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Three quarters of all newborn deaths occur in the first week of life.

所有新生儿死亡中有四分之三发生在生命第一周。

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