au·to·mat·ic trans·mis·sion
noun/ˌɔːtəmætɪk trænzˈmɪʃn/
/ˌɔːtəmætɪk trænzˈmɪʃn/
[uncountable, countable]- a system in a vehicle that changes the gears itself so that the driver does not have to
（机动车的）自动变速器 - a car with automatic transmission
带自动变速箱的汽车
- a car with automatic transmission