英译中，来自翻译练习

·英译中：

原文：

Researchers at Penn and the University of Michigan have created the world's smallest, fully programmable, autonomous robots, packing significant capacities into a device smaller than a grain of salt. These are parsimonious little things, barely visible to the naked eye yet able to sense their environment, respond to it and move around in complex patterns.

译文：

宾夕法尼亚大学和密歇根大学的研究人员创造出世界上最小、可完全编程的自主机器人，将强大的功能集成到比一粒盐还小的设备中。这些小东西非常精巧，肉眼无法看见，却能够感知环境、对环境做出反应，并以复杂的模式四处移动。