couch surfing英 [kat sf] 美 [kat srf] 沙发客;沙发漫游;沙发冲浪
例句
Couch surfing is travelling on a budget, using a broad network of contacts in order to get overnight accommodation for free, or at as little cost as possible.
“沙发漫游”是一种经济的`旅游方式，可以通过一个庞大的关系网免费或者用尽量低的费用在旅游目的地过夜。
