Americansusedtothink的精选

问题详情：Inthepast,AmericansusedtothinkoftheUnitedStatesasa“meltingpot”ofimmigrants(移民)frommanydifferentculturestotheUnitedStates,theiroldwaysmeltedawayandtheybecamepartofacompletelynewculture.TheU...