菲尔普斯在谈到他漏水的泳镜时说：“我刚跳入水中，泳镜就进满了水。

Said Phelps of his leaky goggles: "I dove in and they filled right up with water.

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在水的深处推水，并开始游泳自由泳。

Push off deep under water, and start swimming freestyle.

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这个想法是球充当了“反桨”的角色，强迫你用你的前臂而不是你的手来抓抱水。游任何泳姿、训练、甚至划水时都可以用这种方法。

The idea here is that the ball acts as an "anti-paddle" forcing you to use your forearms instead of your hands to hold onto water.

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