These micro-machines, which are the envy of nanotechnologists the world over, are self-directed, powerful, precise, accurate devices that are made out of strings of amino acids.
这些微型机器， 能让当今全球纳米工程师嫉妒， 它们是能自我引导、功能强大且精密严谨的设备 它们是由氨基酸链所构成的。