countersign

美 ['kaʊntər.saɪn]

英 ['kaʊntə(r).saɪn]

第三人称单数：countersigns 现在分词：countersigning 过去式：countersigned

同义词

witness,endorse,sign,attest,authenticate

countersign

1.	~ sth 连署，副署，会签（文件）to sign a document that has already been signed by another person, especially in order to show that it is valid

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