undeveloped/ˌʌn.dɪˈvel.əpt/形容词(地方或土地)未开发的;未耕种的The hiking trail led us through a beautiful, undeveloped forest, untouched by human hands.徒步小径带领我们穿过一片美丽的未开发森林,没受到人类手的影响。想跟读,去练习