수조에

In a sentence

• 물고기는 큰 수조에 살고 있습니다.

  The fish live in a large aquarium.

  Here, '수조에' refers to being in a water tank or aquarium, indicating location.

• 나는 수조에 물을 채웠습니다.

  I filled the aquarium with water.

  In this sentence, '수조에' refers to the action of filling the aquarium with water, indicating the target of the action.

• 수조에 있는 물고기를 바라보았습니다.

  I looked at the fish in the aquarium.

  Here, '수조에' specifies that the fish is located in the aquarium which is being observed.