overdrive
🇺🇸
/ˈəʊvərdraɪv/
🇬🇧
/ˈəʊvədraɪv/
A gear in a vehicle that allows it to go very fast.
I shifted into overdrive to pass the truck on the highway.
我換到了超速擋,以便在高速公路上超過卡車。