新托福iBT词汇分类突破 – Unit 077

by 李笑来 on 2009/12/08

Nearly all birds have a tail, the paired flight feathers of which, called rectrices, extend from the margins of a bird’s tail. Tails may be square, rounded, pointed, or forked, depending on the lengths of the rectrices and the way they terminate.

  • tail [teil] n.尾
  • rectrix [ˈrektriks] n.舵羽(鸟尾上的硬毛)
  • square [skwɛə] adj.正方形的
  • forked [fɔ:kt] adj.叉状的
  • terminate [ˈtə:mineit] v.结束