A:Crossed cousin marriage is not allowed in China.
表兄妹在中國是不允許結(jié)婚的。
B:It it true of many countries.
其他國家也是這樣。
A:You know why?
你知道為什么嗎?
B:Sure. If people are near in blood, they might pass on some genetic disease to the next generation.
當(dāng)然知道,近親結(jié)婚會給下一代帶來某些遺傳疾病。