1.First, there are the yearly growth rings in the trees.

首先，树上有年轮。

2.They are similar to rings inside a tree that can be counted to tell how old the tree is.

它们类似于树的年轮，人们可以通过年轮来判断树的年龄。

3.Well, not exactly, but trees grow rings – a layer of wood for each year of growth.

好吧，不完全会，但是树木会长年轮——树木的年轮一年长一圈。

4.TREE rings are Mother Nature's history books.

年轮是大自然的史书。

5.Essentially divided into two halves, the light and the dark.

年轮基本上分为两部分，光明和黑暗。

6.For example, narrow tree rings suggest dry conditions.

，窄的年轮意味着干燥的条件。

7.This light blue section is data from tree ring observations.

浅蓝色的部分是树木年轮观测的数据。

8.Fry then decided to count the tree's rings to learn its age.

然后弗莱决定数树的年轮来了解它的年龄。

9.Then, there is the ratio of two forms of carbon within the rings.

然后是年轮内两种形式碳的比率。

10.We can't read the rings to know how old these aspens are.

我们无法通过读取年轮来得知这些颤杨的年龄。

11.They say that thick rings indicate years when there was plenty of water.

他们表示越厚的年轮显示空气中有大量水份的年代。

12.Thin rings show years when there wasn't.

而这些细的年轮则显示水分不充足。

13.We see it in the tree rings of the ancient redwoods.

我们可以在古老的红杉树的年轮上看到火。

14.Tree rings can show age and give information about the environment over time.

树木年轮可以显示树龄，并提供随时间变化的环境信息。

15.Like the bear fur, each annual ring can be analyzed.

就像熊的皮毛一样，年轮也能用来分析。

16.There they form regular white bands amid the sediments, much like age rings in trees.

它们在沉积物中形成规则的白色带，很像树木的年轮。

17.Some of the rings are thicker than others, showing that the tree has grown more.

有一些年轮比其他的要厚，显示出树木生长得更多。

18.When we look at words this way, it is much like exploring tree rings.

当我们以这种方式看待单词时，就很像探索树木的年轮。

19.People are more familiar with things like tree rings and ice cores or ocean sediment cores.

人们更熟悉树木年轮、冰核或海洋沉积物核等东西。

20.Scientists can then read these records, similar to reading the rings on a tree.

然后，科学家就可以读取这些记录，就像读取树上的年轮一样。