F(xin)ڵλã(y) > ̘I(y)(j) > Ԕ(x)(ni)
ɽ|ݟ늏Sѭh(hun)偠tÓ켼g(sh)̰
һ(y): (j)l(f)L(zhng)偠tÓg(sh)칤
һ(y): ɽ(yng)Ȫ늏Sѭh(hun)偠t Ó˼PÓ̰
I(yng)a(chn)ƷУÓˮ؇UҺwUˮٟtpw併؇C(j)ÓSƷr(ji)(bo)r(ji)