undergrowth

n.矮树丛；细绒毛

We hacked our way through the undergrowth. 我们披荆斩棘在矮树丛中前进。

There was a sudden movement in the undergrowth. 矮树丛里突然有什么东西动了一下。

Their daily trips through the jungle have made a path in the thick undergrowth. 他们每天往返穿过丛林，已在茂密的矮丛中踩出了一条小路。