undergrowth
noun [ U ] uk/ˈʌn.də.ɡrəʊθ/ us/ˈʌn.dɚ.ɡroʊθ/
林下灌丛；林下植物
a mass of bushes, small trees, and plants, especially growing under the trees in a forest
Police discovered the body hidden in thick undergrowth. 警察发现尸体被藏在一处浓密的灌木丛中。
Synonym: underbrush