Start in pushup position, but with your shins on a Swiss ball.
以俯卧撑姿势开始，使小腿胫骨位于平衡球上。
Do challenges, like races or pushup or pullup challenges.
提出挑战，如跑步比赛或俯卧撑。
When Martin Skrtel does a pushup, he isn't lifting himself up, he's pushing the Earth down.
当马丁做俯卧撑时，他并没有撑起自己，而是按下了地球。
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