❤ 模仿文本：Well we know that all cancers originally arise from one abnormal cell that has gone to the bad that's started to grow when it shouldn't grow to proliferate and to invade. And the reason that that happens is because mutations have accumulated in that single cell, mutations in particular set of genes that we call cancer genes. Those mutations in the cancer genes convert that normal cell into a cancer cell. 

 

❤ 译文：众所周知，所有癌症都发源于异常细胞增殖，扩散和侵袭。其原因是原细胞发生突变，特别是在细胞癌基因中发生突变。这些突变使得正常细胞转化为癌细胞。