This means that the entire contacted area or field undergoes genetic changes and is more likely to develop cancer in the future.

这意味着整个被致癌物质接触到的区域或范围都会经历基因改变，且这些接触区域在将来更容易发生癌症。

Their interior is divided into hundreds of millions of miniature balloon-like projections called alveoli that dramatically increase the contact area to somewhere around 100 square meters.

它们的内部被分成数亿个微型气球状突起，称为肺泡，可将接触面积显着增加到 100 平方米左右。