The canteen means that everyone should obey the order, consciously queue up, and don't cut in line.

It was a population migration movement in China in the last century that young intellectuals jumped the queue in the countryside. At that time, the population of China expanded rapidly, and the economic situation was not very good, especially the grain output was low and there were not enough jobs in the city. Many students graduated = unemployed. Mao Moumou, who is always great, glorious and correct, called on the broad masses of educated youth to go to the countryside and receive re-education from poor and middle peasants. To put it bluntly, it is to go to the countryside to farm to solve their own food problems and ease the employment pressure in cities. More than N educated youths went to the countryside actively or were taken the initiative, which brought great pain to countless urban families. Many educated youths died in the countryside, and countless women were raped by bad people and cadres in the countryside. After Deng Gong came to power, he ended the movement of educated youth going to the countryside. And allow educated youth to return to the city. Later, China's unique informed literature came into being.

Up to now, some educated youths have not returned to cities for various reasons.

Similar population migration movements include Xinjiang Production and Construction Corps and the Frontier Movement.

There are many movies and TV literature works about educated youth jumping the queue in the countryside, such as Romance in Blood, Twilight in Blood and so on.