camper的复数形式怎么写？

camper的音标：camper的英式发音音标为：['kæmpə(r)]camper的美式发音音标为：['kæmpɚ]...

n.露营者，野营者，（装有露营设备的）露营车，房车...

Harry's a professional camper, Mom.Harry是露营专家, 妈妈.Li Hua, what would make you a happy camper?那还不简单! 就是不改作业.Two Frenchmen were standing on the sand beside their camper van.两个法国人站在他们的旅行车厢旁边的沙地上....