Internal mass migration also took place when 2 million Americans migrated to California , 1.2 million of which were located in Los Angeles .
Internal mass migration also took place when 2 million Americans migrated to California , of which 1.2 million settled in Los Angeles .
Internal mass migration also took place when 2 million Americans migrated to California , of which 1.2 million settled in Los Angeles .
이 텍스트를 다른 말로 바꿔보세요: Internal mass migration also took place when 2 million Americans migrated to California , 1.2 million of which were located in Los Angeles . 산출: