Before the operation the twins, who were abandoned at birth by their parents, were given just a 25 per cent chance of surviving without brain damage.

这对女婴在出生后就被父母遗弃。她们的父母都认为手术对大脑不造成影响的概率仅有25%。

youdao

A number of genetic disorders result in irreversible damage to the fetus before birth, as well as for those with genetic disorders who may benefit from therapy before symptoms are manifested.

许多遗传性疾病导致胎儿在出生前就受到不可逆的损害，还有一些遗传性疾病在症状表现明显以前如果获得治疗则可以从治疗中获益。

youdao

It results from the failure of a part of the brain to develop before birth or in early childhood or brain damage and affects one in 400 births.

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