What does epidemic period_city_stop mean?

During the epidemic, staying in the city means not working.

A proper term in physics is a relatively static state relative to a certain object (or a certain reference system), which is called a static state. In physics, it is divided into absolute stillness and relative stillness.

Gehl discusses Zeno in "Lectures on the History of Philosophy" and talks about the dialectical unity of movement and stillness in "Encyclopedia of Philosophy". He said: "Something occupies its position, changes its position, and thus forms another position. However, something occupies its position as always and does not leave its position. There are three different positions, namely at this moment. . To be occupied and to be sublated, the process of disappearing of the time dimension is at a standstill, but at the same time there is only one position, only one thing that is the same in those positions, only one unchangeable thing that all change contains. This is the persistence that exists directly according to its concept, and this persistence is movement."