ϺF(xin)I(y)W(xu)Ժ
FI(y)g(sh)W(xu)ԺD^
ɽ|I(y)W(xu)ԺD^
ɽ|I(y)W(xu)ԺD^
(j)I(y)W(xu)ԺD^
ɽ|̘I(y)I(y)g(sh)W(xu)ԺD^
W(xu)ԺD^
ɽ|̘I(y)I(y)g(sh)W(xu)ԺD^