travel on 和 on tavel 的具体区别请问这两个可以作为单独的词组吗?不用在句子中单独的说出来 然后把意思描述一下～

travel on 和 on tavel 的具体区别请问这两个可以作为单独的词组吗?不用在句子中单独的说出来 然后把意思描述一下～ travel on water和travel in water travel on travel on horses 请问travel和go on a trip 有什么不同? What always travel on foot? 高中英语travel to work on travel on the 如题 on travel 和for travelling的区别;visit on 和visit to的区别举例 travel on a car?travel on a car,还可不可以说,travel in a car? 是travel to vacation,还是travel on vacation travel in the sea 还是 travel on the sea.. Where to travel on holiday in China? What always travel on foot?的回答 travel on business 有什么用法? to travel on foot is the cheapest way =to travel on foot is the____expensive way It also keeps a record of the date on which they will travel.中为什么要加on?这句话是不是定语从句,on和travel有关系么? 关于travel on一则新闻,说在约旦访问的教宗将在星期六travel on to Isreal.这里travel on 是不是指“继续旅行”?