freewheel
🇺🇸
/ˌfriːˈwiːl/
🇬🇧
/ˌfriːˈwiːl/
to coast or move without using power or effort
After the initial push, the cart started to freewheel down the hill.
经过最初的推动后,手推车开始沿着山坡自由滑行。