In some cases, before even providing laboratory proof of the capabilities of their molecular-size creations, nanotechnologists have started to muse about whether infinitesimal robots will run amok and consume the planet.

• 在某些情况中，奈米科技专家甚至还没有在实验室中证明这些分子级发明的功能，就开始忧虑超小型机器人会不会疯狂乱跑、毁灭地球。