| 51. | Not all travel [tourist] agencies are reliable. |
| 并非所有的旅行社都是可靠的。
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| 52. | I am going to travel by express. |
| 我将乘快车旅行。
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| 53. | Airplanes enable people to travel great distances rapidly. |
| 飞机使人们能够很快地作远距离旅行。
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| 54. | The era of space travel has begun. |
| 太空旅行的时代开始了。
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| 55. | Nothing in human experience has prepared man for space travel . |
| 人类节能型太空飞行是没有任何经验可供借鉴的。
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| 56. | We supply every requisite for travel . |
| 我们供应各种旅行必需品。
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| 57. | My travel agents have made all the reservations for my journey. |
| 我的旅行社已为我预订好全程的车船票。
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| 58. | The quickest means of travel is by plane. |
| 最快的旅行方式是坐飞机。
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| 59. | Our minds can travel when our bodies are forced to stay at home. |
| 虽然我们不得不呆在家中，但我们的思想却仍可自由驰骋。
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| 60. | If you travel in a foreign country, a guide may save you expense and trouble. |
| 假如你在外国旅行，向导可以节约你的费用并省却你不少麻烦。
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