When I was a boy, I used to travel by bus or by motorbike. My grandparents used to live in a small town, but my parents used to work in another town. It's far from my home to my grandparents'. It's about 100 miles. We used to take a bus or ride a motorbike to visit my grandparents. There were always many people on the bus. I always felt terrible when I was on it. Therefore (因此), my parents used to take me to my grandparents' home by motorbike, but it was too cold in winter. We had to stop to stay warm for a while and have a short rest for several times on the way.
Now, it has changed a lot. My father bought a nice car three years ago. We can drive to my grandparents' home. And I am an 18-year-old college student. I don't feel terrible even though I travel by bus. I usually feel comfortable when I travel by car.