aSir Alexander Mackenzie, (a) in 1793, spoke of the skilled manner of chart-making by an Athabascan tribe, in which the Columbia river was drawn. 亚历山大・ Mackenzie, (1793年) a先生,讲了话熟练的方式图做由Athabascan部落,哥伦比亚河被画。 [translate] aPIRAEUS,Greece sharon.jin anna.zhang ...