This is the 16890th most frequent Korean word.
삼척까지
"삼척까지" means "up to Samcheok" (Samcheok is a city in South Korea).
In this sentence, '삼척까지' is used to specify the destination point for the travel, emphasizing up to Samcheok.
우리는 자동차를 타고 삼척까지 여행했다.
We traveled by car to Samcheok.
Here, '삼척까지' indicates the end destination from Seoul, questioning the time it takes to reach.
서울에서 삼척까지 기차로 얼마나 걸립니까?
How long does it take by train from Seoul to Samcheok?
In this context, '삼척까지' is utilized to denote the furthest extent of the delivery range.