和谐英语

VOA慢速英语:东京机场新增智能交通工具

2020-06-12来源:和谐英语
Words in This Story

mobility– adj. the ability to move

boarding gate– n. the place to leads to the airplane

robotics– n. machine that do human tasks

sensor– n. a light that senses motion

battery– n. a energy storage device