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una vez
gen.	once

una vez: 53 phrases in 17 subjects

Biology	1
Coal	1
Communications	1
Data processing	3
Economy	3
Finances	9
Forestry	1
General	14
Industry	1
Information technology	4
International Monetary Fund	1
Law	5
Mechanic engineering	1
Politics	2
Sound recording	1
Statistics	2
Technology	3