原文：In 1840，Cyrus performed a miracle by cutting from two to two-

原文：In 1840，Cyrus performed a miracle by cutting from two to two-and-a-half hectares a day with the curious machine he had been developing for nearly 10 years.译文：到了1840年，塞路斯用他历经近十年研制的神奇机器创造了一天可割麦2到2.5公顷的一个奇迹。
【正确答案】：到了1840 年，塞路斯创造了一个奇迹、用他历经近十年研制的神奇机器，一天可割麦2到2.5公顷。(考点:长句拆译)