Harry's a professional camper, Mom.是什么意思？

Harry's a professional camper, Mom.

Harry是露营专家, 妈妈.

professional

adj. 专业的，专业性的，职业的；n. 专业人士；

例句
The whole cast executed the production with truly professional aplomb.
全体演职人员以一种真正的专业精神，从容不迫地开始了影片的制作。

camper

n. 露营者，野营者，（装有露营设备的）露营车，房车；

例句
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.

mom

n. <美>妈妈；

例句
He and my mom were arguing every night, hour after hour.
他和我妈妈每天晚上都吵个不停。