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- 2015년 6월 16일 (화) 13:35 (차이 | 역사) . . (+3,528) . . 새글 DanellaIm861 (새 문서: What condition are ball bearings? They are shaped such as a ball, as everyone knows, right? The funny thing in what everyone knows is that everyone could be wrong. As an example, ever...) (최신)
