His old landlord Geno was having a clear out and found it.

他的前房东吉诺打扫房间时发现的。

Hey, mind you say that Geno had the letter for two years.

别忘了 就说是吉诺把这封信放了两年。

But if you think about the area that the twin study was involved in things like say, identifying what might be epigenetic damage to the geno that might proceed the development of mutations that could lead to cancer risk.

但是如果你想想双生子研究涉及的领域，比如，确定引起基因表观遗传损伤加快基因突变从而导致患癌风险的因素。