словарь польский - английский
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śpiewająco на английском языке:
1. 
with flying colours
She passed the test with flying colours.
He passed all his exams with flying colours and went on to college.
As he was expected of, he passed the final exam with flying colours. Well, when you are the best what can stand in your way?
I passed with flying colours, so now I don’t have to worry about getting into university.
Английский слово "śpiewająco«(with flying colours) встречается в наборах:
#1 Chapter - 333 Triosylower advanced course U2
listening vocabulary
BBC 6 minutes
flying colours 