deal in
US /diːl ɪn/
UK /diːl ɪn/

1.
comerciar con, dedicarse a
to buy and sell a particular product or type of product
:
•
My uncle deals in antique furniture.
Mi tío comercia con muebles antiguos.
•
The company primarily deals in software solutions.
La empresa principalmente se dedica a soluciones de software.
2.
tratar sobre, referirse a
to be concerned with or to involve
:
•
The report deals in the latest economic trends.
El informe trata sobre las últimas tendencias económicas.
•
His research primarily deals in quantum physics.
Su investigación principalmente trata sobre física cuántica.