[mass noun]the action or practice of moving livestock from one grazing ground to another in a seasonal cycle, typically to lowlands in winter and highlands in summer (尤指冬天向低地,夏天朝高地的)季节性牲畜移动
派生 transhumant adjective 语源
early 20th cent.: from French, from the verb transhumer, based on Latin trans- 'across' + humus 'ground'