| 31. | The children were wading in the pool most of the afternoon. |
| 孩子们大半个下午在游泳池里玩水。
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| 32. | He has made neat paths and has built a wooden bridge over a pool . |
| 他修筑了一条条整洁的小路，并在一个池塘上架了一座小木桥。
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| 33. | As a great many people will be visiting the country, the government will be building new hotels, an immense stadium, and a new Olympic-standard swimming pool . |
| 由于将有大批的人到我们国家来，所以政府准备建造一些新的饭店、一个大型体育场和一个新的奥运会标准游泳池。
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| 34. | At a special swimming pool in Los Angeles, children become expert at holding their breath under water even before they can walk. |
| 在洛杉矶的一个特设的游泳池里，孩子们甚至在还没有学会走路时就已经能熟练地在水下屏住呼吸了。
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| 35. | It is not long before they are so accustomed to swimming that they can pick up weights from the floor of the pool . |
| 他们很快便适应了游泳，以致能捡起池底的物品。
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| 36. | Tricycles are lined up on the floor of the pool seven feet under water. |
| 三轮车并排放在7英尺深的游泳池底上。
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| 37. | The children compete against each other to reach the other end of the pool . |
| 孩子们比赛看谁先到达游泳池的另一端。
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| 38. | Some children can cover the whole length of the pool without coming up for breath even once. |
| 有些孩子能够跑完游泳池的全长而不用露出水面换气。
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| 39. | Our next obstacle was a shallow pool of water about half a mile across. |
| 下一个障碍是一片约半英里宽的浅水塘。
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| 40. | In this part of the cave, they could hear an insistent booming sound which they found was caused by a small waterspout shooting down into a pool from the roof of the cave. |
| 在这儿，他们可以听见一种连续不断的轰鸣声。后来他们发现这是由山洞顶部的一个小孔里喷出的水柱跌落到水潭中发出的声音。
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