Answer:
Slavery in ancient Rome played an important role in society and the economy. Besides manual labour, slaves performed many domestic services and might be employed at highly skilled jobs and professions. Accountants and physicians were often slaves. Slaves of Greek origin in particular might be highly educated. Unskilled slaves, or those sentenced to slavery as punishment, worked on farms, in mines, and at mills.
Roman mosaic from Dougga, Tunisia (2nd century AD): the two slaves carrying wine jars wear typical slave clothing and an amulet against the evil eye on a necklace; the slave boy to the left carries water and towels, and the one on the right a bough and a basket of flowers.[1]