Definition

Examples

• 科学家通过观察年轮来了解树木的年龄。
  Kēxuéjiā tōngguò guānchá nián lún lái liǎojiě shùmù de niánlíng.
  Scientists learn the age of trees by observing their growth rings.
• 年轮的宽度可以反映当年的降雨量。
  nián lún de kuāndù kěyǐ fǎnyìng dāngnián de jiàngyǔliàng.
  The width of the growth rings can reflect the rainfall of that year.
• 这块木头的年轮非常明显。
  Zhè kuài mùtou de nián lún fēicháng míngxiǎn.
  The growth rings on this piece of wood are very distinct.