| 摘要 |
A baseball game wherein movement between the bases is performed by aquatic animals that instinctively tend to swim against the direction of flow of a current of water, the game comprising an open channel defining a baseball diamond corners; safe and out zones provided in proximity to each of the corners; and circulating means for circulating a stream of water through the diamond-shaped channel, the stream of water is opposite to the desired direction of movement of the aquatic animals.
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