n.[生][解](尤指内脏的)脊；皱褶；皱纹

Kiam nia la Ruga Armeo revenos? 几时（里格）人马（介子个）再回山？

anterior column of ruga of vagina 阴道前褶柱

posterior column of ruga of vagina 阴道后褶柱

Diagnosis and therapy of knee perfectibility synovium ruga on patella 膝完全型髌上滑膜皱襞的诊断与治疗

ruga gastrica [医] 胃皱褶

Ruga gossypii 棉曲叶病毒