1. 会签：敬启者: 贵方第BC345号订购汽车防盗器(auto security systems)的定单已经收悉. 我方接受该定单并随函附寄我方第567号销售确认书一式两份,请会签(countersign)后寄回一份供我方存档. 我方相信贵方将会尽早开立有关信用证.

2. countersign

2. 副署,连署：purchase 买,购买,购置,所购物 | countersign 副署,连署 | in duplicate(正副)一式两份

3. 加签;副署：Cotton Tree Drive Marriage Registry 红棉路婚姻登记处 | countersign 加签;副署 | countersignatory 副署人

4. 联署：crossed cheque划线支票 | countersign 联署 | paying bank 付款行

1. 连署，副署，会签(文件)
    If you countersign a document, you sign it after someone else has signed it.

    e.g. The President has so far refused to countersign the Prime Minister''s desperate decree...
           总统到目前为止仍然拒绝在首相那条孤注一掷的政令上连署签字。
    e.g. Dolores, please come in and countersign a cheque.
           多洛雷斯，请进来连署支票。

1. a second confirming signature endorsing a document already signed

    Synonym: countersignature

2. a secret word or phrase known only to a restricted group

    e.g. he forgot the password

    Synonym: passwordwatchwordwordparole

1. add one''s signature to after another''s to attest authenticity

    e.g. You must countersign on this line of the contract