四渎sì dú释义(archaic) the four rivers (Yangtze 長江|长江[Chang2 Jiang1], Yellow 黃河|黄河[Huang2 He2], Huai 淮河[Huai2 He2], Ji 濟水|济水[Ji3 Shui3])(TCM) acupuncture point SJ-9单字详解四si渎du