We already know that folic acid reduces the risk of neural tube defects, including spina bifida.

我们已经知道叶酸降低风险的神经管缺陷，包括脊柱裂。

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We already know that folic acid reduces the risk of neural tube defects, including spina bifida.

我们已经知道叶酸降低风险的神经管缺陷，包括脊柱裂。

youdao