According to the geographical definition, however, the Vale is from two to five miles wide, and the distance by road from Abingdon to Shrivenham at its head is 18 miles.
根据地理上的定义，然而，淡水河谷是从两到五英里宽，并通过道路从阿宾登到什里弗纳姆在其头部的距离为18英里。