back 2 New HSK word(s): HSK4 专业 → → → → + zhuan1ye4 specialty; specialized field; main field of study (at university); major; CL:门/门men2,个/个ge4; professional HSK4 专门 → → → → + zhuan1men2 specialist; specialized; customized 3 Old HSK word(s): B VS 专门* → zhuan1men2 special/ specialized B N 专业* → zhuan1ye4 specialty/ specialized field D N 专业户* → zhuan1ye4hu4 specialized households