A far bigger cause of concern than the growth of national groups, however, is the increasing number of migrants who return to their countries of origin.
然而,比民族群体增长更令人担忧的是越来越多的移民返回其原籍国。
2
Iran traces its nationalorigin to Persia, an empire that emerged in the 6th century BC under the Achaemenid dynasty.
伊朗的起源可以追溯到波斯,一个形成于公元前6世纪在契美尼德王统治下的古老王朝。
3
Even then, they "may not consider race, colour or nationalorigin".