冷水还能使你的肌肉反应迟钝，使你游不动。
Cold water can also slow your muscles, making it hard to swim.
最后我再也游不动了。
船越来越远，孩子力气快用完，实在游不动了。
Boat farther farther, the children running out effort, it does not move tour.
有时，乌龟干脆爬到水里去游泳，游累了，它就会浮在水面上，一动不动。
Sometimes, the tortoise simply climbed into the water to go swimming, swimming tired, it will float on water, stilly.
有时，乌龟干脆爬到水里去游泳，游累了，它就会浮在水面上，一动不动。
Sometimes, the tortoise simply climbed into the water to go swimming, swimming tired, it will float on water, stilly.
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