Joke Collection Website - Blessing messages - It's the first time to take the high-speed train, and I don't understand the meaning of SMS (d683.05. 18d).

It's the first time to take the high-speed train, and I don't understand the meaning of SMS (d683.05. 18d).

D683 is the train number,

05 is the car number,

18d is seat d, not by the window.

The bullet train has five seats in a row, namely: abcdf,

Af is a window seat,

Bcd non-window seat. I hope you will have a nice trip!