en_tn/act/08/05.md

went down to the city of Samaria

The phrase "went down" is used here because Samaria is lower in elevation than Jerusalem.

the city of Samaria

Possible meanings are 1) Luke expected the readers to know which city he was writing about. AT: "the main city in Samaria" or 2) Luke did not expect his readers to know which city he was writing about. AT: "a city in Samaria"

proclaimed to them the Christ

The title "Christ" refers to Jesus, the Messiah. AT: "told them that Jesus is the Messiah" (See: rc://en/ta/man/translate/figs-metonymy)