ɽ|t(y)W(xu)ߵȌƌW(xu)У
ͲߵȌƌW(xu)У
ͲI(y)W(xu)ԺD(sh)^
ɽ|ʡD(sh)^
VʡD(sh)^
(j)t(y)W(xu)ԺУ^(q)D(sh)
(j)I(y)W(xu)ԺD(sh)^