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Smooth ice provides very little resistance against objects, like ice skates, being dragged across its surface.
光滑的冰面对于物体——譬如在冰面上拖曳的冰刀——施加极小的摩擦阻力。
Smooth ice provides very little resistance against objects, like ice skates , being dragged across its surface.
光滑的冰面对于物体——譬如在冰面上拖曳的冰刀——施加极小的摩擦阻力。
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