round-arm
  (a.)臂揮到齊肩高度的(ad.)臂揮到齊肩高度地
  Round-arm a. Cricket Applied to the method delivering the ball in bowling, by swinging the arm horizontally.
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  round-arm
       adj : with the arm swung round at shoulder height; "round-arm
             bowling"
       adv : with an outward or horizontal swing of the arm; "he hit the
             ball round-arm"