双挂号 shuāngguàhào registered mail with return receipt Definitions Defs Origin Strokes Stroke Words Sentences Sents 双 雙 shuāng numeraladjective two Two; both; dual; twin; double; twofold挂号 掛號 guàhào to send by registered mail to mail an important document via a service where it is registered and tracked by the post office
