完整原文
Dear Alex, I am writing to share China's new garbage sorting policy, which has recently changed our daily habits for the better. Specifically, every household is required to separate waste into four clear categories: recyclables, food remains, harmful items, and other trash. For example, I always collect used plastic bottles and paper boxes for recycling, because reusing them helps save natural resources. Besides personal efforts, community volunteers often guide residents at the recycling stations, making our neighborhoods much cleaner and greener. I believe turning waste into treasure is truly a smart choice, and I look forward to hearing about your local environmental rules in your next letter.