반응형 HistoricalWonders1 [Water Quality and Safety] 수상 안전과 로마 수로 [Water Quality and Safety] Water Safety and the Roman Aqueducts (수상 안전과 로마 수로) Introduction(서론) Clean water is essential for human health and survival. Today, we have access to advanced water treatment facilities and sanitation systems that make it possible to ensure that our water is safe to drink. But in ancient times, people didn't have these luxuries, and waterborne diseases were a major thr.. 2023. 3. 31. 이전 1 다음 반응형
