전당하다 I've never heard of such word. if it's 전담하다: to take full charge/responsibility of if it's 전당... I know of 전당포 which means a pawnshop. But never heard of 전당하다 if it's 저당하다.. But still don't make sense. 저당잡히다, 저당권 설정하다 means to set up a mortgage. 시골밥상: 시골 means countryside. 밥상 is literally a dinner table. 밥상 is also used as a metaphor for "meal" since Korean food is served on a table-full of variety of 반찬. The phrase "시골밥상" is put up on the facades of restaurants that serve Korean food in country style. Its meaning is similar to "set menu". 단체환영: Customers in (large) group are welcomed. (won't be rejected for the size of the group)

there are no word "전당하다" in korean , but there is another one "전담하다" that means be responsible for.. and 시골 밥상 means korean traditional country side foods table.. 단체 환영 means welcome for group members..