单词	couch surfing
释义	couch surfingˈcouch ˌsurfing (also ˈsofa ˌsurfing) noun [uncountable] the practice of staying for free at the homes of friends or other people and sleeping on their couches, when you do not have a permanent home of your own or when travelling
随便看	bully bully boy bullying bully-off bulrush bulwark bum bum bag bumble bumblebee bumbling bumf bummer bump bumper bumper car bumper sticker bumph bumpkin bump 'n' grind bumptious bumptiously bumptiousness bumpy bun

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