An user Polish
says…

Od
Adposition
 momentu powstania  gimnazjum
Noun
 zdobyliśmy  także
Particle
  wiele
Determiner
  doświadczeń
Noun
  pracując
Verb
  z
Adposition
 młodzieżą gimnazjalną.

Since the establishment of the junior high school, we have also gained a lot of experience working with junior high school students.
Words and sentences
New
od

  1. indicates separation, distance, loss of contact; from, away
  2. indicates origin of movement; from, away
  3. indicates moment of origin in time; from, since, for
  4. indicates source or cause; from, because of
  5. indicates intended use or purpose; for
  6. indicates specialization
  7. used in comparisons; than
  8. used to indicate the author of a letter or work; from, by
  9. used in passive constructions; by
  10. indicates material; from

New
gimnazjum

a former type of secondary school in Poland, starting at the age of 12-13, and following at that time 6 years of elementary school; gymnasium; removed in 2017 by increasing the length of elementary (szkoła podstawowa) and secondary (liceum) school education

New
także

New
wiele

New
doświadczeń

genitive plural of doświadczenie

New
pracując

present adverbial participle of pracować

New
z

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