in my car中介词为什么要用要用in?可用by吗

in my car中介词为什么要用要用in?可用by吗 英语高手进!in my car中介词为什么要用要用in?可用by吗? In my car by my car不可以吗 in his car和on my bike介词为什么不同 请问为什么go by bus or in my car谢谢. in one's car为什么等于by car? in their car为什么用in ,不用by? in his car还是by his car? by car与in a car区别 my free time前用何介词(on?in?by?) get a ride in my father'car 还是 drive in my father'car ?为什么? travel in by car or by train.