The disease is caused by a genetic defect that leads to bone marrow failure and a greater risk of cancers, such as leukaemia.
2
有些人会告诉你，这是在基因上和这肯定是一个遗传链接到许多类型的癌症。
Some will tell you that it's in the genes and there certainly is a genetic link to many forms of cancer.
3
很久以前科学就明确了吸烟会导致癌症，但是一项新研究显示儿童能从吸烟的父亲那里遗传这种基因损伤。
The science has long been clear that smoking causes cancer, but new research shows that children could inherit genetic damage from a father who smokes.
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