declarer

1.the declarer finesses ◆ J.

叫人飞了一张◆J。

2.declarer dropped West's queen on the second round of spades.

定约人在黑桃的第二轮就将西家Ｑ硬打吊出。

3.declarer overruffed with ◆ K and led another spade.

定约人用◆K王盖吃，又用了一张黑桃开。

4.before establishing his diamonds, declarer must draw trumps.

为了全取方块，做人必须先吊主。

5.Undertrick — each trick by which declarer's side falls short of fulfilling the contract (see Law 77).

宕墩——定约方未完成定约所少得（丢失）的每一墩。