资料来源 : pyDict

铺地板者,打倒,打败,难题

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Floorer \Floor"er\, n.
   Anything that floors or upsets a person, as a blow that
   knocks him down; a conclusive answer or retort; a task that
   exceeds one's abilities. [Colloq.]