in one gulp in Polish:

1. jednym łykiem

Polish word "in one gulp"(jednym łykiem) occurs in sets:

NONE OF THIS IS TRUE
good neighbour 12-15

2. jednym haustem

Polish word "in one gulp"(jednym haustem) occurs in sets:

The good neighbour

3. jednym tchem

Polish word "in one gulp"(jednym tchem) occurs in sets:

Lekcje cz. 1 i cz. 2