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Lie on a Swiss ball with your knees bent and feet flat on the floor.
人体卧于瑞士健身球上，两膝弯曲，足平放于地面。
youdao
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The footballer kicked at the ball but missed and fell flat on his face.
那个足球运动员要踢球，但没有踢到，闹了个嘴啃泥。
youdao
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The footballer kicked at the ball but missed and fell flat on his face.
那个足球运动员要踢球，但没有踢到，闹了个嘴啃泥。
youdao