n.血统，世系( lineage的名词复数 )...

lineages的音标：...

Individuals of these two lineages may have avoided one another for a number of reasons.这两个世系血统不同的类群彼此相互隔绝,可以有种种理由.All humans will have the ancestors therefore associated with their original 25 birth lineages.故而,所有人类都将拥有和...