- 问题详情:Haveyoueverdreamedaboutsendingalettertoyourselforyourfriendsinthefuture?Whileexpressmail(快递)isafastwaytosendyourletters,thereisanothertypeofmailappearinginChinaasanewbusiness—futuremail.“ThelettershouldbesentnextMother’sDayandnotadayearl...
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