nordic芯片烧录:historical background？

historic&historical historical background？ protect historical legacy historic or historical What is historical and cultural heritage place of historical interest and scenic beauty; scenic spots and historical sites 什么意思？ list the three historical periods of English and their dates an emphasis on historical sights relating to the Austrian School 有关Religious and historical background of English idioms的资料 What is Mao Zedong's great historical merit?