tree house
noun [ C ] uk/ˈtriː ˌhaʊs/ us/ˈtriː ˌhaʊs/
树上小屋
a small building, structure, or shelter built among the branches of a tree
I spent hours in our tree house when I was a kid. 孩提时代，我在树屋里一玩就是几个小时。
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