He bought a thin metal plate with a hole at the centre.

他买了块中心有孔的薄金属板。

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Small hole can be used with thin ropes if necessary, or as a belay plate.

细孔与幼绳同用或可作保护板用。

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Small hole can be used with thin ropes if necessary, or as a belay plate.

细孔与幼绳同用或可作保护板用。

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