Polish English Dictionary
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bez ustanku in English:
1. 
incessantly
Their dogs bark incessantly and bother everyone.
Throughout the day, the rain fell incessantly.
English word "bez ustanku"(incessantly) occurs in sets:
Fiszki praki różne 62. 
for hours on end
He used to stay in his room for hours on end and listen to music.
He waited by the telephone for hours on end.
