gearbox
🇺🇸
/ˈɡɪrbɑːks/
🇬🇧
/ˈɡɪəbɒks/
A gearbox is a part of a vehicle that helps to change the speed and direction of the wheels.
The mechanic had to repair the gearbox to fix the car's transmission issues.
修理工必須修理齒輪箱以解決汽車的傳動問題。