COMB in N-COUNT （用以构成复合名词）表示“乔装打扮成向…传递讯息的人” -gram combines with nouns to form other nouns which refer to someone who dresses up in order to bring a message to someone else, as a practical joke. （用以构成复合名词）表示“乔装打扮成向…传递讯息的人”