专业性

professionalism / expertise

specialty / specialized field / main field of study (at university) / major / CL:門|门[men2],個|个[ge4] / professional

for a particular person, occasion, purpose / focused on one thing / special / expert / particular (to sth) / concentrated / specialized

variant of 專|专[zhuan1]

line of business / industry / occupation / job / employment / school studies / enterprise / property / (Buddhism) karma / deed / to engage in / already

nature / character / property / quality / attribute / sexuality / sex / gender / suffix forming adjective from verb / suffix forming noun from adjective, corresponding to -ness or -ity / essence / CL:個|个[ge4]