I have never driven an automatic car before and I keep trying to change gear, but I expect I'll soon get the hang of it.

我以前从没驾驶过自动汽车，因此我不停地变换排挡，但我想我会很快掌握它的窍门的。

youdao

Automatic yarn let-off system which used change gear drive for regulating run-in values.

采用交换齿轮调节送经量的积极式送经机构。

youdao

You have to change gear manually in this car; it's not automatic.

你必须用手改换这部车的排档，因它不是自动的。

youdao