How luggage has transformed through the years
Editor's note: As the world's largest annual human migration, the travel rush during Spring Festival, always gives us striking scenes of swarms of people sardine-packed at train stations across the country. With different destinations, they carry all sorts of luggage; from huge and heavy nylon bags to light and smart suitcases, the "sweet burden" does not only function as a practical travel necessity, but also reflects how modern China has changed over the past decade.