1.Palearctic Zoogeographic region of nontropical Eurasia and north tip of Africa.
古北区的非热带欧亚大陆与非洲北端的动物地理区。
2.Common perennial herbaceous plant (Linaria vulgaris) of the snapdragon family, native to Eurasia and widely naturalized in North America.
玄参科常见的多年生草植物,原产欧亚大陆,被北美洲广泛移植。
3.Through Heilongjiang a downstream big talk and Japanese sea are interlinked, via terraqueous join " Eurasia bridge " , execute through traffic of water, land and river sea through transport.