Las mafias mismas se encargan de producir, transportar y mercadear la droga.The mafias themselves are in charge of producing, transporting, and marketing the drug.
Estos vendedores ambulantes mercadean con objetos y alimentos que han elaborado ellos mismos.These street vendors trade in objects and food that they have made themselves.
Nos ganamos la vida mercadeando con todo lo que pillamos: televisores, libros, ropa.We make a living dealing in everything we can get hold of, televisions, books, clothes.