• 尤其骨髓初期开始成长时候,当然那时孕妇可能还不知道自己怀孕了,最安全办法就是每天服用400微克维生素b(叶酸的合成体)。

    Since the spinal cord starts to develop extremely early-before a woman may know she's pregnant-the safest course is for her to take 400 micrograms of folic acid (the synthetic form of folate) daily.

    youdao

  • 尤其骨髓初期开始成长时候,当然那时孕妇可能还不知道自己怀孕了,最安全办法就是每天服用400微克维生素b(叶酸的合成体)。

    Since the spinal cord starts to develop extremely early-before a woman may know she's pregnant-the safest course is for her to take 400 micrograms of folic acid (the synthetic form of folate) daily.

    youdao

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