VOA慢速英语:报告称亚马逊包装机的工作速度比人类快得多

warehouse – n.large building for storing goods to be sold

automation – n.the controlling of something using machines and not people

belt – n.part of a machine that moves objects

delivery – n.the taking of things from one place to another

efficiency – n.a good use of time and energy, without wasting time and money