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when you compare, you can see the different between  rich & poverty. Some thing is
6 H0 c+ E# ?% O. M% j# _( n7 ]! t$ ivery interesting: The weekly expense on food in the Beijing family is almost as much as) _( Y* e  w) E) `# m7 t
the family in California. After all their favorite food is only sweet & sour spare rib  , how come it is so expensive?