![Beijing,Shanghai,Guangzhouandotherbigcitiesaregreatplac...]( "Beijing,Shanghai,Guangzhouandotherbigcitiesaregreatplac...")
- 問題詳情：Beijing,Shanghai,Guangzhouandotherbigcitiesaregreatplacestolivein.Therearemanyinterestingthingstoseeanddo.Youcangotodifferentkindsofmuseums,seeallkindsofplaysandfilms.Youcanalsobuythingsfromallovertheworld.Butthereareseriousproblemsinbigcitie...
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