他花了数小时对着一堵墙扔网球。

He spent hours throwing a tennis ball against a wall.

《柯林斯英汉双解大词典》

他们建了一堵墙防止土壤流失。

They built a wall to avoid soil being washed away.

《牛津词典》

那地方周围有一堵墙，没有门。

There was a wall around the place and there was no door.

youdao

These two characters are as if there is a wall between them, a wall of foam.

在这两者之间,就像是有一堵墙，一堵用泡沫筑成的墙。

耶鲁公开课 - 1945年后的美国小说课程节选

There's a wall there.

它们之间有一堵墙。

普林斯顿公开课 - 人性课程节选