We use DNA because it's cheaper, it's easier to handle, it's something we understand really well -- so well, in fact, that we think we can actually write programming languages for DNA and have molecular compilers.
它比较容易处理。我们对它的了解已经非常透彻了。 我们对它的了解是如此地透彻，事实上，我们认为我们可以 写一个DNA 的程式语言并且拥有分子编译器。