Objective: Much evidence show that tumor development is related to the ability of cell 's DNA repair system.

目的：许多证据表明肿瘤的发生与细胞DNA损伤修复能力下降有密切关系。

youdao

In the last couple of months alone, we've been told that alcohol damages the DNA of unborn children beyond repair, but that it's OK for pregnant women to have a couple of glasses of wine a week, which is pretty conflicting advice.

BBC: Alcohol limits advice 'confusing'