Pigeons fluttered in and out, cooing gently.鸽子们低声咕咕地叫着，扑扇着翅膀飞进飞出。the sound of pigeons cooing鸽子咕咕的叫声The boy frightened away the pigeons from the roof.那男孩把屋顶上的鸽子吓飞了....
the sound of pigeons cooing鸽子咕咕的叫声Pigeons navigate less accurately when the earth’s magnetic field is disturbed.地球磁场受到干扰时，鸽子的道航能力就会变得不准确。The new vicar's a Marxist that'll set the cat among the pigeons!新来的牧师是马克思...