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Until ships became large enough (and engines small enough) to mount two engines side by side, they needed to keep sails.
出自-2014年6月阅读原文
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Before the War, much of Britain's food was imported and when German U-boats began attacking ships bringing food to the country, Britain went on rations (配给).
出自-2011年6月阅读原文
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All in all, the Olympic class ships were marvels of sea engineering, but they seemed cursed to suffer disastrous fates.
2018年6月四级真题(第一套)阅读 Section C
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Ships are often sunk in order to create underwater reefs perfect for scuba diving and preserving marine habitats.
2019年6月四级真题(第三套)阅读 Section A
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Stretching 269.13 meters, the Olympic class ships were wonders of naval technology, and everyone thought that they would continue to be so for quite some time.
2018年6月四级真题(第一套)阅读 Section C
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The Olympic class ships were built by the Harland and Wolff ship makers in Northern Ireland for the White Star line company.
2018年6月四级真题(第一套)阅读 Section C
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The Olympic suffered two crashes with other ships and went on to serve as a hospital ship and troop transport in World War I.
2018年6月四级真题(第一套)阅读 Section C
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They gathered together temperature readings collected by everything from a 19th century voyage of British naval ships to modern automated ocean probes.
2016年12月四级真题(第二套)阅读 Section A