This is a running track.

这是一条跑道.

《简明英汉词典》

A running track should be capable of absorbing the impact of a runner's foot landing on it.

跑道应该能够吸收奔跑者踩踏地面时产生的撞击力。

柯林斯例句

The attendant smoothed away the slight irregularities in the running track.

跑道上稍稍有些不平,勤务人员把它弄平整了.

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A running track surrounds the socle.

跑道周围的基座.

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Moon on the Earth's gravity at the site of the running track in the run!

月球就在地球引力场内的运行轨道中运行的!

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