zmniejszył się in English:

Production of rice has decreased.

Mary decreased her waist size by swimming every day.

The medicine decreased his pain.

The population of this city has decreased.

The members decreased to five.

However, the general crime number has not decreased though the juvenile delinquency stands out.

While the birth rate is intended to be decreased in developing countries, that of developed nations is selfishly planned to be increased, resulting in the difficulty of getting mutual consent.

The company laid off twenty percent of its work force; therefore, expenses decreased.