undergrowth [ˈʌndərgroʊθ]

例句:

• I heard them coming, crashing through the undergrowth, before I saw them.
  还没看到他们，我便听到他们穿过矮树丛过来的声音。
  
• Someone behind him, blundering through the undergrowth.
  来自B. Bainbridge
• A man armed with a...machete slashes a track...through the undergrowth.
  来自A. J. Toynbee
• The bushfire actually helped to burn off a lot of dead undergrowth.
  林区大火实际上有助于清除很多枯死的矮灌木。
  
• We had to bushwhack through undergrowth.
  我们只好在灌木丛中劈开一条路。
  
• She heard them crashing through the undergrowth, close behind her.
  来自D. M. Thomas