这种奇特的鱼用像手一样的鳍片在水底走路，而不是游泳！ 这可是今年5月在澳大利亚的海岸最新鉴定出这样的新物种。
Nine fish that use handlike fins to walk, rather than swim, off Australia were identified as new species in May.
你也可以在水底走路或做抬腿或转手臂的体操，研究显示，在水里做有氧运动能以较少时间达到在陆上做同样的效果。
You can also "take a walk" underwater or perform calisthenics like leg lifts or arm circles. Research shows that water actually offers an equal aerobic workout in less time than one on dry land.
你也可以在水底走路或做抬腿或转手臂的体操，研究显示，在水里做有氧运动能以较少时间达到在陆上做同样的效果。
You can also "take a walk" underwater or perform calisthenics like leg lifts or arm circles. Research shows that water actually offers an equal aerobic workout in less time than one on dry land.
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