1.A pigeon strutted along the roof, cooing rhythmically.
子沿着屋顶大摇大摆地走,有节奏地咕咕叫 。
2.Pigeons preened their wings and cooed.
子用喙整理翅膀, 咕咕地叫。
3.I must search in the drowsy shade of the bakula grove, where pigeons coo in their corner, and fairies' anklets tinkle in the stillness of starry nights.