noun 下载 🔗分享 邮箱，邮筒 A box in which post can be left by a sender to be picked up by a courier or postman (postal worker). Examples : "The letter for Grandma was placed in the postbox. " 给奶奶的信被放进了邮筒。 communication service place utility 与AI对话词汇游戏阅读练习
