The enemy would always have the advantage of familiarity with the ruggedterrain.
敌人会一直在对崎岖地形的熟悉上占有优势。
《柯林斯英汉双解大词典》
2
Riding small native Irish horses, 'hobins", which are well suited to the marshes and ruggedterrain of Ireland, the Gaelic Hobiguir are able to outmaneuvre heavier cavalry with ease."