growth ring

名词 n.
中文释义

英文释义

名词 n.
  1. A circular structure that forms as a living thing ages that is used or counted to estimate the age of the living thing.
  2. A circular structure that forms as a living thing ages that is used or counted to estimate the age of the living thing.; Any of the concentric rings formed in the trunk of a tree by the annual growth of wood.

词形变化

growth rings plural
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