- N-UNCOUNT (森林里林木下的)下层灌丛,灌木丛
Underbrush consists of bushes and plants growing close together under trees in a forest.
- ...the cool underbrush of the rain forest...
雨林里使人感到凉爽的下层灌丛 - The trail was steep and thick with underbrush.
那条小路非常陡峭,而且长满了灌木丛。
in BRIT, use 英国英语用 undergrowth