2D 0-11 兩高54+ or 18+ 兩高55+
2M to play(0-9)
2N 詢問高低限
3C! MIN (HCP+Ms<=14)
3D! not MIN, 5H4S
3H! not MIN, 5S4H
3S! MAX, 55
3N! (65)11
4m (65)20, 2 cards m
3m to play
3M PRE
3N S/O
4m STR m ST
4M S/O
4N 6 key cards rkcb