arboreal

形容词 arboreal:

1. of or relating to or formed by trees
   同义词：arborical, arborary, arborous
2. inhabiting or frequenting trees
   同义词：arboreous, tree-living
3. resembling a tree in form and branching structure
   同义词：arboreous, arborescent, arboresque, arboriform, dendriform, dendroid, dendroidal, treelike, tree-shaped

1. Man was evolved from an ancestor that was probably arboreal.
   人大概是从住在树上的祖先进化而来的。
2. Squirrels are arboreal creatures.
   松鼠是栖於树上的动物。