APPd

һ pd

̫ƽ܇W(wng) > ˹(dng) > ˹h(yun)̆(dng)

˹h(yun)̆(dng)

1 2

Ʒƣ

܇ͣ ˹

ٷr(ji) o(bo)r(ji)

܇ģDƬ

ʾ

_

֮ܲ鿴܇ҵĺ܇тĻ؏(f)Ŷ

Ҫᆖ