automatic transmission

system in a motor vehicle that changes the gears automatically 自动变速器（机动车辆中的自动换挡系统）.

authorized, authorship, autism, autistic, auto, auto-suggestion, autobahn, autobiographic, autobiography, autocracy, autocrat, autocratic, autocratically, autocross, Autocue, autograph, automat, automate, automatic, automatic pilot, automatically, automation, automaton, automobile, automotive, autonomous, autonomously, autonomy, autopsy, autostrada, autumn, autumnal, auxiliary, AV, avail, avail oneself of, availability, available, avalanche, avant-garde,