在中间滑道的底部布置有锯齿空间。

A jook space is arranged at the bottom of the middle slide-way.

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注意一下有一半的W的锯齿是比另一半深一些的。

Note that one half of the W is more deeply notched than the other half.

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注意一下有一半的W的锯齿是比另一半深一些的。

Note that one half of the W is more deeply notched than the other half.

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