by bus 是一个短语,那by在这里是什么词性?

by bus 是一个短语,那by在这里是什么词性? It takes about 10 minutes to walk and 5 minutes by bus.这里用的固定短语是It takes sb some time to do stn.是不是应该在by bus.前加 to 所有介词在介词短语中都有意思吗 好像look after 中的after在这个介词中是什么意思 by bus 在短语中的意思是乘坐吗 一个英语短语的解释----在线等---by sea = by ship by air = by plane by road 相当于by car 还是by bus 还是别的. go by的详细用法如题 GO by 是短语哈不是 go somewhere by bus 那种 书上解释是（指时间）过去,消逝 For centuries it kept the Americas from being discovered by the people of Europe.请问在文中by是什么意思,be discovered by是固定短语吗? 还是by在这里单独表示意思? by bus 的同义词是take a we could face delay if we travel by bus.应该翻译成我们会晚点见面,还是我们会迟到?书上给出的是我们会迟到!那face在这里又怎么解释!谢谢! 是take a bus还是by a bus还是take the bus还是by the bus,为什么 the cheapest way is by bus.这个“by bus”难道能做定语吗 请答题者解释清楚对不起 说错了 是表语 我总觉得by短语作表语有点怪 再次请答题者解释清楚 谢谢 They can get there by bus（对划线部分提问,划线部分是by bus） We can go there by bus.对划线部分提问划线部分是by bus She went shopping by bus yesterday.(划线部分提问）划线部分是by bus Tom goes to school by bus 【对画线部分提问】 ----------by bus 是划线部分 His mother goes to work by bus? 提问是by bus we often go to school by bus.对划线部分提问画线部分是by bus He goes to school by bus（就划线部分提问) by bus是划线部分 I go to school by bus.(对划线部分提问）划线部分是by bus