luh2名n坑Hole in the ground. This word differs from "ruz" in that this term is used for holes in flat ground, that is, in horizontal surfaces, whereas ruz is used for holes and caves in verticle cliffs and mountains.luhnamhlu³¹广南县者兔乡Zhetu District, Guangnan County原始台语Proto-Tai*ru A2李方桂 1977年Li Fang-Kuei 1977