1. Ordinary trains start with "K" or "T", such as K525, and high-speed trains start with "G", such as G 1635.

2. The riding environment of high-speed rail is better and more comfortable.

3. The speed of high-speed rail is faster, ranging from 250 km/h to 350 km/h, and the speed of ordinary trains is slow, so choosing high-speed rail can get to the destination faster.