which runs over mountains,through valleys and across deserts

which runs over mountains,through valleys and across deserts 为什么是across desert,through valleys,through mountains? 辨析across,through,over across,through ,over区别 beyond over across through 英语翻译From majestic mountains and valleys of green to crystal His lean,graceful body was nothing but valleys and mountains 高考有关across,through,over! over across through的区别 求翻译：I came across the sea and over the mountains to find you Cross across through over具体区别 cross/across/through/over/pass/past