名词
中文翻译：树的年轮
同义词：
['wooden ring', "tree ring例句：1. The ancient tree's arbor vitae is visible through the bark.（这棵古老的树的年轮可以通过树皮看到。）"]
例句：
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1. The ancient tree's arbor vitae is visible through the bark.
这棵古老的树的年轮可以通过树皮看到。
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2.The scientist studied the arbor vitae to understand the tree's growth patterns.
这位科学家研究了树的年轮以了解树木的生长模式。
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3. The arbor vitae of the old oak tree is unique and fascinating.
老橡树的树轮非常独特且引人入胜。