translation.en: Now if you look at biology, there's many structures like DNA and antibodies and proteins and ribosomes that you've heard about that are already nano-structured.
translation.zh: 现在，如果查看一下生物， 有许多类似DNA、抗体、 蛋白质和核糖体这样你曾听说过的结构， 这些结构以及是纳米结构了。