annual ring
annual ring — 名詞
1. A visible circle in the cross-section of a tree trunk or branch that corresponds
年輪
樹木年輪；橫切面上的生長環
A visible circle in the cross-section of a tree trunk or branch that corresponds to one year of new growth.
Asher counted the annual rings on the old oak stump to learn its age.
Asher 數了老橡樹樁上的年輪，想了解它的年齡。
count annual rings to determine the age of a tree
A very wide annual ring shows that the tree had a good growing season.
非常寬的年輪表示那棵樹當年生長季節良好。
Scientists examine annual rings to learn what the weather was like centuries ago.
科學家透過研究年輪來了解數百年前的氣候狀況。
The maple log had thirty-seven annual rings, meaning it was thirty-seven years old.
那根楓木上有三十七圈年輪，表示它已經三十七歲了。
Each annual ring has a lighter inner part and a darker outer part.
每圈年輪都有顏色較淺的內層和顏色較深的外層。
- growth ring
Emphasises the growth process; interchangeable with 'annual ring' in most contexts.
- tree ring
More common in everyday conversation; slightly less formal than 'annual ring'.
文法句型
annual ring + verb (show, indicate, reveal)
count + annual ring(s)
用法筆記
Commonly used in the plural (annual rings) when referring to the full set visible in a cross-section.