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Sentence
Span Details
関節
joint (anatomy)noun
部分
part; portion; sectionnoun
の
possession, attribution, nominalizer, or nominal linkergrammar
皮溝
skin depression; epidermal depressionnoun
に
direction, time, indirect object, or target markergrammar
汚れ
dirt; filth; stain; blot; spotnoun
が
subject markergrammar
たまり
accumulate; pile up; collect-> 溜まるgodan verb
やすい。
easy to dogrammar