- Thiskindofsceneisquitecommonrightinthemodernsociety.Whythetrafficissocrowded?Obviously,thepopulationisincreasingtoofast.Guangzhou,forinstance,hasalreadygotagreatpopulationof10million,whilethebirthrateisstillincreasingatahighspeedtoo!Whentakingabusint...
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