donkey stone

短语

词形变化

donkey stones 复数 donkey stones

释义与例句

n.
  1. 1.

    A kind of scouring block, used mainly in the mill towns of nothern England to highlight the leading edge of stone steps.

    历史

词源

The donkey brand was originally the trademark of a Manchester company called Edward Read & Son.

来源：wiktionary