How might this knowledge be used to help people eat more healthily?
如何利用这些知识来帮助人们吃得更健康呢？
If we give the adult tree proper care, it will go on to live healthily for many years.
如果我们给成年的树适当的照顾，它会健康地活许多年。
Researchers say planting and protecting will be needed to make sure cities can develop healthily, but more needs to be done to have a better understanding of city trees which may be different from countryside forests.
