While I was there I noticed one of the very large trees has recently had some branches cut back.

我在那里的时候注意到一棵非常大的树最近被砍掉了一些树枝。

A tree may have its branches cut, but give it water, and it will grow new branches.

一棵树的枝条可能被砍掉了，但给它浇水， 它就会长出新的枝条。

If he thinks that a tree of his gives little fruit or fruit of not the quality he would like, he takes a branch, cut on a specific height, on a specific point of the tree, of the branch.

如果他认为某棵树结出的果实很少，或者果实的质量不是他想要的，那么他会选一个树枝，在特定高度、树的特定点上切割这个树枝。