v.磨损；拖着脚走
n.拖着脚走；磨损
I scuff the heel of my boot on the step. 我的靴子后跟在台阶上磨坏了。
I scuffed the heel of my boot on the step. 我的靴子後跟在台阶上磨坏了。
If you scuff (your feet) like that, you'll wear the heels out. 你那麽拖著脚走路，就要把鞋跟磨坏了。
v.混战；扭打；拖脚行走
n.混战
n.折皱变形(齿轮咬现象；划痕；塑性变形)
