英语语法分析

Folic acid helps prevent neural tube birth defects such as spina bifida.

叶酸能帮助防止诸如脊柱裂等神经管畸形出生缺陷的发生。

But he had spina bifida; this time, she could not go straight back to work.

但是汤姆患了脊柱裂，所以她又不能出去工作了。

The child had spina bifida and had already endured a dozen operations in her short life.

孩子患有先天性脊柱裂，在她短暂的生命中已承受了十多次手术。