urchin

名词 urchin:

1. poor and often mischievous city child

1. A street urchin.
   街头流浪儿
2. A fine, sharp projection, as a spine of a sea urchin or a crystal.
   针状物精细尖锐的突出物，如海胆的脊椎骨或水晶球
3. Those grubby urchins ran to me and asked for candy.
   那群邋遢的小淘气们向我跑过来要糖果。