名词
中文翻译：年轮
同义词：
['yearly growth ring', "annual ring例句：1. The tree's annual growth rings are visible in the bark.（这棵树的年轮在树皮上是可见的。）2. The forest has a unique pattern of annual growth rings that can be used to track its age.（森林有一种独特的年轮模式，可以用来追踪它的年龄。）"]
例句：
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1. The tree's annual growth rings are visible in the bark.
这棵树的年轮在树皮上是可见的。
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2. The forest has a unique pattern of annual growth rings that can be used to track its age.
森林有一种独特的年轮模式，可以用来追踪它的年龄。
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3.The scientist studied the growth rings to determine the age of the tree.
科学家研究了生长环来确定这棵树的年龄。