N-COUNT 旅行房车;娱乐休闲车 An RV is a van which is equipped with such things as beds and cooking equipment, so that people can live in it, usually while they are on holiday. RV is an abbreviation for 'recreational vehicle'. 旅行房车;娱乐休闲车 [mainly US]
...a group of RVs pulled over on the side of the highway.