문제와 해결 (Problem and Solution) 특징: 문제를 제시하고 그 해결 방법을 설명 신호어: problem, solution, to address this, in order to solve 등 예시: 도시 교통 문제와 대안 제시 The Problem of Plastic Waste and Its Solutions Plastic waste has become a critical environmental issue worldwide. Every year, millions of tons of plastic end up in landfills and oceans, polluting ecosystems and endangering marine life. One of the primary causes ..