RidingaLondonsubway,apersonfromChinawillnoticeonemajord...
問題詳情：RidingaLondonsubway,apersonfromChinawillnoticeonemajordifference:inLondon,peopledonotlookateachother.Infact,eyecontactisavoidedatalltimes.That'snotrudeness—peoplearejusttoobusytobotherlookin...