kuv1微笑smile同义词Synonymsnyinh微笑smile2哈哈笑laugh侬话西北次土语Northwestern Daez Dialect ko2ko1kusamzkʰu¹³广南县者兔乡Zhetu District, Guangnan County原始台语Proto-Tai *xrua A1李方桂 1977年Li Fang-Kuei 1977