병에

In a sentence

• 나는 병에 물을 담았다.

  I filled the bottle with water.

  In this sentence, '병에' refers to the bottle as the location where the water is stored, indicating the container.

• 새로운 디자인의 병에는 특별한 기능이 있다.

  The bottle with the new design has special features.

  Here, '병에' (병+에) modifies 병 with an auxiliary ('에') to suggest possession or characteristic, associated here with its design.

• 병에 걸린 사람들은 치료를 받아야 한다.

  People who have contracted an illness need medical treatment.

  In this sentence, '병에' refers to a disease ('병') contracted by people, with '에' indicating association or relation.