써먹고

In a sentence

• 내가 배운 요리 기술을 친구들에게 써먹고 싶었어.

  I wanted to use the cooking skills I learned with my friends.

  Here, '써먹고' refers to utilizing learned skills practically.

• 이 책에서 얻은 지식을 업무에서 써먹을 수 있을까?

  Can I apply the knowledge gained from this book in my work?

  In this context, '써먹고' signifies employing knowledge effectively.

• 그렇게 공부했으니 시험에서 써먹어야지.

  Since you've studied that way, you should use it in the exam.

  Here, '써먹고' is used to mean putting one's study efforts to practical use in a test.