na początku ?:

1. in the beginning

Inglese americano parola "na początku"(in the beginning) si verifica in set:

There's no turning back now.
Korepetycje cz. 2

2. at the beginning

Inglese americano parola "na początku"(at the beginning) si verifica in set:

Przydatne zwroty do rozprawki maturalnej
Time adverbials
Marcin_7th Sept