[[자연수,natural_number]]의 하나

Rel:
[[삼각형,triangle]]
[[큐브,cube]] - [[세제곱,cube]]
[[삼체문제,three-body_problem]] / [[three-body_problem]] .... curr at [[보디%2Cbody?action=highlight&value=three-body_problem]]
[[트리플렛,triplet]]
...


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[[영,zero]] [[하나,one]] [[둘,two]] '''셋,three''' [[넷,four]]