我们在森林边缘发现了几丛茂密的灌木。

We found some dense ___clumps of bushes at the edge of the forest.

他的头发上沾满了泥块。

There were ___clumps of mud stuck in his hair.

我们听到楼梯上传来一阵阵脚步声。

We heard the ___clumps of footsteps coming down the staircase.

孩子们穿着笨重的雨靴在泥地里笨拙地走着。

The kids ___clomped through the muddy field in their heavy rain boots.