Now, that was a pretty good system for most of the history of the regulation of land, until this technology came along, and people began to wonder, were these instruments trespassers as they flew over land without clearing the rights of the farms below as they traveled across the country?
那是一个相当好的系统 在人类管理土地的历史上一直适用 直到一种科技的到来，使大家开始想 这些东西到底是不是非法侵犯者 它们没得到批准就飞越私人土地 飞越土地上的农场