automatic transmission
US /ˌɑː.t̬əˈmæt.ɪk trænzˈmɪʃ.ən/
UK /ˌɑː.t̬əˈmæt.ɪk trænzˈmɪʃ.ən/

1.
自动变速器, 自动挡
a system in a vehicle that changes gear automatically, rather than by the driver having to change gear manually
:
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Most new cars come with an automatic transmission.
大多数新车都配备了自动变速器。
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Driving with an automatic transmission is often considered easier for beginners.
对于初学者来说,驾驶自动变速器的汽车通常被认为更容易。