clawson 基本例句 n.克劳森 Clawson- knetsch method---- One method for using travel costs to estimate the recreational value of a resource. 柯罗文-肯塔斯方法——一个用旅行成本来来评估资源娱乐价值的方法。 blog.sina.com.cn But Patrick Clawson of the Washington Institute for Near East Policy says Iranian intelligence has lately avoided plots like that. 但华盛顿近东政策研究所的帕特里·克劳森 Patrick Clawson表示,伊朗情报部门近年来早已避免类似的阴谋事件。 www.sdx.js.cn