A 2500-step stone road was built in ancient times.

在古代建了一条2500级石阶路。

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Allow yourself to make mistakes, it is the step stone of success.

允许你自己犯错吧，那是成功的踏脚石。

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Used as a step stone, for example, the surface should be flat and rough, this kind of stone is convenient to walk, is not easy to damp.

例如，用作阶梯的石头其表面要平且粗糙，这种石头方便走路，潮湿的时候也不容易滑到。

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The memorial site features a stone inscribed with words from the president's inaugural address in 1961, a 50-step pathway, hawthorn tree and American Scarlet Oak.

BBC: John F Kennedy death: Surrey memorial ceremony planned

Rosetta Stone shares are trading lower after the language instruction software company announced that CEO Tom Adams plans to step down.

FORBES: Rosetta Stone Slides; CEO Tom Adams To Step Down