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работать усердноstresses
gen. work hard; work strenuously; grind
inf. bust one's butt (to work very hard, to put in a lot of effort.; что то дотичь или доказать greenuniv)
Makarov. take pains with one's work
работать усерднее
Makarov. smarten up
работать усердно: 58 phrases in 9 subjects
American usage, not spelling1
Australian1
Cliche / convention2
General31
Informal4
Literature1
Makarov14
Nautical1
Slang3