낙엽으로

In a sentence

• 가을이 되면 낙엽으로 거리가 물들어요.

  In autumn, the streets are colored with fallen leaves.

  Here, '낙엽으로' indicates the material or cause, showing that fallen leaves are the subject that colors the streets.

• 우리는 낙엽으로 장식을 만들었어요.

  We made decorations out of fallen leaves.

  Here, '낙엽으로' represents the resource or material used to create decorations.

• 바람이 불어서 낙엽으로 모든 것이 덮였어요.

  Everything was covered by fallen leaves because of the wind.

  Here, '낙엽으로' indicates the means or cause by which everything was covered.