1. to stratify
2. build up
Animals build up groups.
It took him nearly 20 years to build up such a big collection of clockwork trains.
But I think that we can learn from the others and further build up our system.!
3. to pile
Englisch Wort "nawarstwiać się"(to pile) tritt in Sätzen auf:
Listening - BZDAK - marzec4. overlaps
5. to mount up
Englisch Wort "nawarstwiać się"(to mount up) tritt in Sätzen auf:
słówka cz. 6 kserówka6. accumulate
He tried to accumulate wealth.
We accumulate our opinions at an age when our understanding is at its weakest.