1、 Parkin was so surprised and amused that he overbalanced and fell from the ladder.
帕金又吃惊又好笑，失去平衡，从梯子上摔了下来。
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2、 He and his colleagues (and also Dr Parkin, in a separate experiment) have persuaded practice to match theory.
他和他的同事们将实践速度提升到了理论速度值(Parkin博士也在另一个试验中也实现了这一成绩)。
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