The number of card tricks needed before any tricks can have scoring value, as the first six tricks taken by the declaring side in bridge. 完成约定的牌墩数在获得有记分价值的牌墩前应完成的牌墩数，比如打桥牌时叫方认下的前六墩
A card trick won in excess of contract or game, as in bridge. (桥牌中的)超约得墩如在桥牌戏中赢的超过了叫牌墩数或比分的叠牌
