ɽ|t(y)ˎߵȌƌW(xu)УD(sh)
uSW(xu)ԺD(sh)^
ɽ|˾I(y)W(xu)ԺD(sh)^
II(y)W(xu)ԺD(sh)^
|I(yng)I(y)W(xu)ԺD(sh)^