strenuous

[ˈstrenjuəs] [ˈstrenjuəs]
  • 副词:strenuously;
  • 例句
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    • Adjective
      1. characterized by or performed with much energy or force;
      "strenuous exercise"
      2. taxing to the utmost; testing powers of endurance;
      "his final, straining burst of speed""a strenuous task""your willingness after these six arduous days to remain here"- F.D.Roosevelt