over、across、through、past和along用法有什么区别（怕没人回答所以先不悬赏,如果回答的精确追加30分）分别给出例句和词组,如果回答的精确追加30分!

辨析across,through,over across,through ,over区别 Cross across through over具体区别 across through over 三个词的区别? go through/over/across的区别? across through over有什么区别 请问across,through,over有何区别? cross,across,through和over的区别用法 across,cross,through,over的区别,用法细致点 over,across,past,through,cross的用法及区别 单词 across ,cross,through,over,区别?用法?词性? across ,through,over,past用法之异,及常用短语 across,cross,through,over的区别谢谢了, which runs over mountains,through valleys and across deserts.英译汉 over,through,across的区别,最好举例子 across,above,over,on,cross,through的区别, past,across,over,through和cross 之间的区别 across.cross.through.past.over beside besides区别