tread down

Từ điển WordNet v3.1 - WordNet Dictionary

verb

walk on and flatten
- tramp down the grass
- trample the flowers
• Syn:
tramp down, trample
• Derivationally related forms:
trample (for: trample), trampler (for: trample)
• Hypernyms:
walk
• Verb Frames:
- Somebody ----s something