1 swans ( Swan ) is a kind of very beautiful animals, they have white feathers, very good at flying and quiet.
In 2 dogs are man's best friend, they were quite friendly. The dog ran very fast. But...
英语翻译翻译：1.天鹅（swan）是一种很美丽的动物,它们有着白色的羽毛,很擅长飞翔并且很安静.2.狗是人类的好朋友,它