So, marginal land is brought into play with hard work and ingenuity, and this is one of the things that Hanson emphasizes that is so helpful.

那么,边际耕地需要,在一定的生产条件下,生产收益正好足以补偿所需费用的土地,这就是汉森所强调的相当有益的一点

耶鲁公开课 - 古希腊历史简介课程节选