| 51. | John and I have maintained our friendship for thirty years. |
| 我同约翰的友情已保持了30年。
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| 52. | Wake me up at five thirty . |
| 请在5点30分叫醒我。
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| 53. | She had lived in the flat for thirty years and was a veritable magpie at hoarding; |
| 老妇人在这套公寓里住了30年，她又是个名副其实的收藏家。
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| 54. | King Gustavus Adolphus, 'The Northern Hurricane', then at the height of his military success in the Thirty Years' War, had dictated her measurements and armament. |
| 当时号称“北方飓风”的国王古斯夫斯.阿道尔弗正处在“三十年战争”的军事鼎盛阶段，他亲自规定了这艘船的规模和武器配备。
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| 55. | She has been helping her husband for thirty years now. |
| 她已经帮了她的丈夫30年了。
|
| 56. | But when the train dawdled at station after station, I began to wonder. It suddenly dawned on me that this express was not roaring down the line at ninety miles an hour, but barely chugging along at thirty . |
| 但是，当火车一站接着一站往前蠕动时，我便产生了怀疑。我突然感到这趟快车并没以时速90英里的速度呼啸前进，而是卟哧卟哧地向前爬行，时速仅30英里。
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| 57. | Twenty or thirty pages of information handed to any of the major world powers around the year 1925 would have been sufficient to change the course of world history. |
| 二三十页材料中的思想和情报会便当今的世界翻天覆地，甚至毁灭这个世界。这是个离奇的想法。
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| 58. | It is a strange thought, but I believe a correct one, that twenty or thirty pages of ideas and information would be capable of turning the present-day world upside down, or even destroying it. |
| 我常常试图想像这些纸上所写的东西，不过我是做不到的，因为我和你们大家一样，是当今世界上的凡人。
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| 59. | I moved from Los Angeles to San Francisco at the age of thirty . |
| 我在三十岁时从洛杉矶搬到旧金山。
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| 60. | She dashed off two letters in thirty minutes. |
| 她在 30 分钟内写好了两封信。
|