"Melting Pot theory"and"Salad theory"Explain the above two.About America Immigration Please answer in English

Melting Pot theoryandSalad theoryExplain the above two.About America Immigration Please answer in English Melting Pot 歌词 THE MELTING POT怎么样 melting-pot of America是什么意思? a melting pot of cultures melting pot如何理解?如题 the melting pot用英语解释（一两句话） Why is the United States known as a melting pot Melting Pot and American Culture 他们有什么关系么? Why is America compared to a melting-pot? 为什么说美国是Melting Pot （请详解）中英文均可,请尽可能详细 “Melting Pot” versus “Salad Bowl” l指的是什么?Ellis Island vs.Angel Island Why is the united states negarded as a “melting pot” and a “salad”?用英文解答, Do you render America as a“melting pot”or“salad bowl”?Why? melting pot 的意思词典里面melting por解为坩埚但它还有别的用法比如说 New York is the melting pot of America.在这里的melting pot 是指很多人种聚集的地方 请问 在中文中要怎样翻译才贴切呢? What's the features of melting pot culture in the United States?这个汉语意思我知道，是要用英语回答这个问题！ situ melting 英语翻译Into this area of industry came millions of Europeans who made of it what became known as the melting pot,the fusion of people from many nations into Americans.