translation.en: So a 12 year-old girl raises her hand and says, literally, "Apart from the fact that improper replication of the DNA molecule causes genetic disease, we've understood nothing else."
translation.zh: 然后一个12岁的女孩举起手说， 原话是， “除了错误复制DNA分子会 导致遗传疾病这个事实之外， 我们什么也不懂。”