常見(jiàn)例句noun [ U ]For a child to have Tay-Sachs Disease, both parents must have the defective gene responsible. 只有當(dāng)父母都攜帶有缺陷的相關(guān)基因時(shí)，他們的孩子才會(huì)罹患家族黑蒙性白癡病。 返回 Tay-Sachs Disease