With acclimatisation, players will learn to hit the ball slightly lower while applying more spin to get the ball around the wall and into the top corner.

而适应以后，球员们将学着用更大的旋转稍低的射击来使球越过人墙高射入网。

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Research by the USGA has shown that U-shaped grooves allow top players to generate much more spin when playing the ball out of the rough, making the ball come to a quick stop on the green.

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