Thanks all! I really learn a lot from your replies. :lol: the first hand, partner hold: ♠Axxx ♥xxx ♦AKxx ♣Kx when I bid 3♣, partner choose pass since he think he didn't sure whether 4♣ is safe if he cuebid 3♥. Since the opener's heart suit is: AKJxxx, so, we play 3♣+1 while the other table play 3NT+2. I think 2♥ is a good choice. After discuss with my partner, we decide to use following agreement: 3♣: usually without heart stopper; 2♥: cuebid then bid minor suit, forcing to 4♣, maybe have stopper; if club suit length = 5 and weak stopper in heart, try to bid 2NT/3NT.