不幸的是，1920年赛珍珠的女儿卡罗出生时患有一种叫做苯丙酮酸尿症的先天基因缺陷症，导致智力受损。

Tragically, their daughter Carol was born in 1920 with a genetic birth defect called phenylketonuria, which led to mental impairment.

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她患有苯丙酮酸尿症，这是一种先天性代谢异常病，会影响大脑发育、损伤脑部神经和损害智力。

Borsi Batki suffers from phenylketonuria (PKU), a metabolic disorder that if undetected, can lead to problems with brain development, progressive mental retardation, brain damage and seizures.

youdao

她患有苯丙酮酸尿症，这是一种先天性代谢异常病，会影响大脑发育、损伤脑部神经和损害智力。

Borsi Batki suffers from phenylketonuria (PKU), a metabolic disorder that if undetected, can lead to problems with brain development, progressive mental retardation, brain damage and seizures.

youdao