在树上 用英语怎么说

在树的里面用in，如在树的上方或外表则用on

如果在树上的东西对树来说是外来物，则用in the tree
如: there are four birds in the tree.
如果不是则用on the tree
如: there are three apples on the tree.

苹果在树上是in the tree
大猩猩在树上是on the tree

in\on the tree

in the tree

ON THE TREE