The apple is the on tree and the bird is the in tree

问题描述:

The apple is the on tree and the bird is the in tree

苹果长在树上,小鸟停在树上.
on the tree指在树上,长在树上;in the tree指(外来的东西)在树上.
记忆方法:in的i 一竖上有一点,像树上有一只小鸟.