我們都說(在美國) “ SUV ” (sport utility vehicle 的縮寫)。 讀音是 "S" "U" "V" 每個字 :)
but many "SUV"s are not really for driving in the country, people only use them to drive on normal roads. so some we can call "off-road vehicles", but SUV is a more common term used.....
SUV - big car, maybe can go off road, maybe not.
Off-road vehicle - this term is not very common, it's specialized. it refers specifically to cars that can drive in the country side (no roads!)... like jeeps or humvees.