declarer
n. (桥牌)定约人;宣告者;宣誓者
例句
He trump small but be overtrump by the declarer.
他用小牌将吃,但是被庄家将牌盖吃了。
What do you do, for instance, if declarer plays a diamond?
你会怎么打,例如,当庄家打出一张方块?
Now Woolsey was subjected to a black-suit squeeze, and declarer did not err in the play.
现在,乌尔希陷于黑花色的紧逼之下,庄家在这种打法上不会犯错误。