nub

• All they found of him was a muddy set of prison clothes , a bar of soap , and an old rock - hammer damn near worn down to the nub
  “他们只发现了他的一套沾满泥浆的狱服，一条肥皂和一把磨得几乎只剩下把儿的石锤。 ”
• Nub has owned the right to export import by itself . the design , produce and sale of products are effectively working with the quality guarantee system
  Nub拥有自己的进出口权。产品的设计，生产，销售都严格按照质量体系的要求。