运动周期类似前面的研究。

The exercise period was similar to the previous study.

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很久以前，我们就知道行星的周期运动。

Long long ago, we knew the periodic motion of a planet.

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海王星的周期运动非常缓慢。

Neptune's cycle is very slow.

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周期地或者好象周期性地运动。

To move in or as if in a cycle.

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周期性的发生或者运动。

To occur in or pass through a cycle.

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个跨栏周期的平均速度是影响运动员能否夺冠的主要因素。

The average speed of 9 periods of hurdling is the main factor in fluencing.

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个跨栏周期的平均速度是影响运动员能否夺冠的主要因素。

The average speed of 9 periods of hurdling is the main factor in fluencing.

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