This is the 1545th most frequent Korean word.
국내에
"국내에" means "in the country" or "domestically."
Here, '국내에' is used as an adverbial phrase modifying the verb '판매합니다' (to sell), indicating that the selling action takes place within the country's borders.
그 회사는 주로 국내에 제품을 판매합니다.
The company primarily sells products domestically.
In this sentence, '국내에' specifies the location where the tourists visited, emphasizing the geographical context pertaining to the country.
작년에 국내에 방문한 관광객 수가 증가했습니다.
Last year, the number of tourists visiting the country increased.
Here, '국내에' is used to describe a condition or situation (being distributed within the country), qualifying the reach of '유통되는' (distributed).