대전시장을

In a sentence

• 대전시장을 방문했어요.

  I visited Daejeon Market.

  The word '대전시장을' is used here as a direct object of the verb '방문하다' (to visit) and refers to the 'Market in Daejeon'.

• 대전시장을 재건축할 계획입니다.

  There are plans to reconstruct Daejeon Market.

  In this sentence, '대전시장을' is the direct object of the verb '재건축하다' (to reconstruct), indicating that Daejeon Market is the place to be rebuilt.

• 대전시장을 따라 걷다 보면 맛집이 많아요.

  If you walk along Daejeon Market, you will find many good restaurants.

  Here, '대전시장을' serves as part of the expression '따라 걷다' (to walk along), showing its usage in a spatial description regarding walking.