考研This led him to conclude that the sun itself was rotating and that the time it took to make one complete turn was about twenty-five to twenty-seven days.
这使他得出结论,太阳本身正在自转,完成一个完整的自转所需的时间约为二十五到二十七天。
1981年全国硕士研究生入学统一考试英语试题
考研The ancient-dream was finally realized in 1940 when a Russian engineer piloted a strange looking craft of steel tubing with a rotating fan on top.
这个古老的梦想终于在1940年实现了,当时一位俄罗斯工程师驾驶了一艘外观奇特的钢管船,船上有一个旋转的风扇。
1987年全国硕士研究生入学统一考试英语试题
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