예를 들어 그들은 매우 비싼 값으로 팔리고 있던 참다랑어가 실은 그보다는 훨씬 더 싼 틸라피아라는 것을 알아냈습니다.
So for example, they found something which was sold as tuna, which is very valuable, was in fact tilapia, which is a much less valuable fish.