相关单词近義詞 mail box 信箱, mailbox 郵筒, call box 電話室, POB 郵政信箱（=post o..., postbox 郵箱, PO Box 郵政信箱臨近詞Letteri, letter, letter of pledge, Letter machining, letter of praise, letter destacker, letter telephone, letter of regret, letter of appeal, letter of thanks, letter type code, letter and visit 返回 letter box