abrasive

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Noun:
  1. a substance that abrades or wears down

Adjective:
  1. causing abrasion

  2. sharply disagreeable; rigorous;

    "the harsh facts of court delays"
    "an abrasive character"

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ÓÃ×÷Ãû´Ê (n.)
  1. A trademark can be used for an abrasive of silicon carbide crystals.
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ÓÃ×÷ÐÎÈÝ´Ê (adj.)
  1. Jeff is usually an abrasive character, but he can be as sweet as honey when he wants something.
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  2. An abrasive material is unsuitable for cleaning baths.
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