administratively necessary days的用法和样例：
- Persons on an official tour overseas are quarantined for medical observation for necessary days together with their families.
- It is necessary that he be sent there at once.
- On the contrary, the village communities, which are based on trust of households, can supply and administrate necessary public goods themselves, and it is practiced in some villages.
- The meat marinated in the brine for two days.
- It was in the days when motorcars were rare.