po prostu ?:

1. simply

American english word "po prostu"(simply) occurs in sets:

Angielski czasowniki
Słówka do IT

2. just

American english word "po prostu"(just) occurs in sets:

Mickey Mouse Clubhouse - S1 E1: Daisy Bo Peep
UNIT 2 Cutting Edge Pre-Intermediate Student's Book
angielski korki

3. plain