| 1. | Mann found that by rotating his bottles in the water with a device similar to a paddle wheel. |
| 曼用一种与浆轮相似的装置在水内旋转水瓶，发现这一点。
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| 2. | A rubber ball attached to a paddle by an elastic string loses energy as it files away from the paddle. |
| 一根弹性绳把一只皮球拴在一块叶片上当球飞离叶片时，球失去能量。
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| 3. | You control a paddle that hits balls against the wall. |
| 你操纵开关使小球对着墙走去。
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| 4. | paddle one's toes in the water |
| 用脚趾撩水玩
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| 5. | paddle steamers |
| 明轮船
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