counter-sign
英
['kaʊntərs'aɪn]
美
['kaʊntərs'aɪn]
-
名词 countersign:
-
a secret word or phrase known only to a restricted group
-
a second confirming signature endorsing a document already signed
动词 countersign:
-
add one's signature to after another's to attest authenticity
-