automatic transmission
柯林斯词典
1. N-UNCOUNT A car that is equipped with automatic transmission has a gear system in which the gears change automatically. 自动变速装置
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automatic transmission
剑桥词典
- a system that allows a vehicle to change gear without being controlled by the driver
（车辆的）自动变速器，自动排挡
比较
manual transmission 返回 automatic transmission