翻译（完成时）：这树种了三十多年了，老太了，不结果了。

this tree has been planted for more than 30 years,and it is too old to bear .

The tree has been planted for thirty years. It's too old to bear fruit.

the tree was over 30years old and it didn't bear any more.

不晓得PLANT 是否可以用作完成式，所以我这么翻：The tree that was thirty years old is too old to bear fruit.