It was all hard graft and iron discipline: hitting a ball, alone, for hours.

自己一个人练习击球，一练就几个小时——他成功是全凭自己刻苦努力和坚强毅力。

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This game was played indoors by hitting a ball over a net with a bare hand.

这一游戏在室内进行，游戏时，人们徒手将球击打过网。

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With or without a club or racket, swing like you're hitting the ball.

不管是否有球杆或球拍，都要像在击球时那样挥动手臂。

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There's the simple thrill of hitting a ball with a stick and watching it fly in the air.

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"Greg only returned to light gym work this week and until he starts hitting a ball we'll not know whether he'll play (against Australia), " she said.

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At 29, Roddick has settled into the role of the cranky vet, and before 18, 000 at the Garden he played the clown, chucking his racket in playful frustration (though at one point almost accidentally hitting a ball girl) and briefly mimicking Nadal by pulling up his sleeves, exposing his biceps and imitating the Spanish champion's loopy topspin strokes.

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