ϺF(xin)I(y)W(xu)Ժ
մɹˇg(sh)I(y)g(sh)W(xu)
W(xu)У^(q)D
(j)I(y)W(xu)ԺD(sh)^
֘I(y)I(y)g(sh)W(xu)ԺD(sh)^