桥牌自然叫牌法—ZR51CF简表

zr51cf简表开叫原则第一应叫原则开叫者再叫原则对方未叫对方已叫1C13~21P，逼叫1D=0~7P1HS/2CD=8~11P 5+1NT=8~11P均型2HS=12P+5+，逼叫2NT=12P+均