Today we tell you about some new understanding of why cutting the main branch of a plant or tree can lead to better development.

VOA: special.2009.10.13

We've talked about the peak experience I have spent a lot of time in New York City, and even in the small park down the way I can watch and look at a tree.

我们说过我在大峡谷,我常常去，But，we，almost…,纽约，即使在顺路的小公园里,我也可以观赏一棵树。

普林斯顿公开课 - 人性课程节选

The tree sap in early spring; the new-born green leaf, soft and fresh as skin;

VOA: special.2010.02.27

A new ring is added every year, and thicker rings represent a kind of savings account, when the tree collects more nutrients than it can use.

VOA: standard.2010.04.05