crag martin

名词 n.

英文释义

名词 n.
  1. Any of four species of passerine birds in the Ptyonoprogne genus of the swallow family, including the Eurasian crag martin (Ptyonoprogne rupestris) and the rock martin (Ptyonoprogne fuligula).

词形变化

crag martins plural
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