The next day I bought a pair of swim fins and I have been skin diving ever since.
我第二天买了一橡皮脚蹼，自此从事切肤潜水。
He invented swim fins for his feet and hands because he wanted to move faster in the water.
他因为要在水中游得更快，为自己的手脚发明了脚蹼。
From upstream to downstream, to go to, have no a propeller, without losing tracing the swim fins, ability, we can not return in the past.
从上游来，往下游去，没有桨，没有鳍，失去溯游的能力，我们回不到从前。
Whereas large animals swim by pushing against water with their fins or limbs, this approach is ineffective at very small scales.
而大型动物通过用它们的鳍或肢体滑水的方式游泳，这种方式在微观比例下是低效率的。
Fish of the family Rajidae, which includes stingrays and skate, swim by flicking the outer edges of their fins.
鳐鱼科，包括黄貂鱼和灰鳐，通过击打鳍的末端向前游动。
Many fish larvae hatch without fully formed pectoral fins and all hatch without a swim bladder, so similar problems could occur for them.
很多小鱼孵化出来时，胸鳍还没有完全成形，而且所有的鱼孵化时都还没有形成鱼鳔。所以，它们可能会面临相似的不善于游泳的问题。
He had no fur to protect him, no wings to fly, no fins to swim.
他没有毛皮可以保护他，没有用来飞的翅膀，没有用来游泳的鳍。
Nine fish that use handlike fins to walk, rather than swim, off Australia were identified as new species in May.
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。
Throw on some fins and swim with your eyes forward so you can see your hands enter the water flat and extend flat.
穿上脚蹼，然后眼睛看前方游，你应该看到你的手水平入水，水平伸展。
If I had fins, I would swim deep in the sea.
如果我有鱼鳍，我就能在深海里游泳。
It can swim very well because the fins work in high speed finely.
它能游得很好，是因为它的鳍处于很高的速度。
Those fins join onto a central body that contains a mechanical swim bladder, which allows the robot to maintain a given depth by adjusting its buoyancy.
那些翅片加入到包含一个机械鱼鳔，这允许机器人保持给定的深度通过调节其浮力的中心体。
Through the bosom of that ocean, like fishes with their fins and whales with their flippers, birds and other winged creatures swim;
鱼，鸟和其它有翼动物都在那一片海洋中遨游；
Through the bosom of that ocean, like fishes with their fins and whales with their flippers, birds and other winged creatures swim;
鱼，鸟和其它有翼动物都在那一片海洋中遨游；
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