annual ring
英
美
- annual adj.每年的;年度的;一年生的n.年刊;一年生植物
- ring n.戒指;环;圈;拳击场;马戏场;帮派n.铃声;钟声;电话;口气v.包围;环绕;形成圈v.打电话;回响;鸣响;按铃;听上去
Noun:
-
an annual formation of wood in plants as they grow
- The ring near the bark is the biggest one of all.
离树皮最近的年轮是当中最大的。
- Annual rings record a tree's age.
年轮标示树龄。