孩子们用他们的画作覆盖了整面墙。

The kids covered the ___wall with their drawings.

他们之间的误解筑起了一堵墙，阻碍了进一步交流。

The misunderstanding built a ___wall between them, blocking further communication.

他在墙上挂了一幅画。

He hung a picture on the ___wall.

他们用砖墙围住了后院，防止狗跑出去。

They ___walled in the backyard with bricks to keep the dog from running away.