- 問題詳情:RidingaLondonsubway,apersonfromChinawillnoticeonemajordifference:inLondon,peopledonotlookateachother.Infact,eyecontactisavoidedatalltimes.That'snotrudeness—peoplearejusttoobusytobotherlooking.Busydoingwhat,youask?Well,they'recertainlynotus...
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