VOA慢速英语:微软获得美国军方价值220亿美元合约提供增强现实头戴设备

headset- n. (augmented reality) a device worn on the head that uses computer technology to produce images and information that add to what the wearer can see in the real world

project-v. to cause (light, a picture, a movie, etc.) to appear on a surface

gadget-n. a small, useful device

digital-adj. using or characterized by computer technology

twin-n. either one of two similar things that form a pair

contractor-n. a person who is hired to perform work or to provide goods at a certain price or within a certain time