caravan基本解释
n,大篷车;旅行队,同近
a gipsy caravan.吉卜赛人的大篷车
(可供居住的)拖车,大篷车;(穿过沙漠地带的)旅行队(如商队);<英>活动住宅;<美>移民列车英释中释na vehicle that a car can pull and in which people can live and sleep when they are on holiday