一只鸽子从塔里钻出来，扑扑地拍打着翅膀。A pigeon emerges, wings flapping noisily, from the tower.鸽子们低声咕咕地叫着，扑扇着翅膀飞进飞出。Pigeons fluttered in and out, cooing gently.一只鸽子轻柔地咕咕叫。A dove cooed softly....
Heterochromatic areas tend to stain intensely during interphase, sometimes forming condensed masses called chromocentres.异染色质部分在间期有染色很浓的倾向, 有时形成浓缩的块状,这些块状叫做染色中心....