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работать по специальности stresses
gen.	work in the specialty (Ната-лия); work in one's specialization (Bullfinch); work in one's degree field (m_rakova); work in the speciality one has trained in (VLZ_58); work in one's field
ed.	work within one's specialty (ART Vancouver)
HR	work on his speciality (financial-engineer)
lab.law.	work in their own specialist areas (CNN, 2021 Alex_Odeychuk)

работать по специальности: 8 phrases in 6 subjects

Business	1
Education	1
General	3
Human resources	1
Idiomatic	1
Makarov	1