That means that instead of doing this at random and seeing what happens over generations, we're inserting specific genes, we're inserting specific proteins, and we're changing lifecode for very deliberate purposes.
这意味着我们不能随意地进行试验 然后看看几代后会发生什么。 我们需要插入 特定的基因和特定的蛋白质， 然后根据我们的目的修改生命密码，