有一只小鸟在房顶上.There is a small bird
问题描述：
有一只小鸟在房顶上.There is a small bird
答
There is a small bird on the roof
答
有一只小鸟在房顶上。
There is a small bird 【on the roof 】.
There is a small bird 【on the roof of the house 】.
都行！
答
on the top of the roof
请及时采纳,多谢!
答
on the roof of a house.