。
She often visits this country.
Literal
[topic-は] often this country [object-を] visits.
訪れる ('to visit') takes its object directly with を, without the marker shift to に that some other directional verbs use (e.g., 行く to に). The verb leans literary — in everyday spoken Japanese, 来る ('come') or その国に行く ('go to that country') would be more common. The ~ます ending lifts the register to polite.