2023年11月11日
Air Pollution
摘要： Air pollution is usually thought of as smoke from large factories or exhaust from vehicles. But there are many types of indoor air pollution as well. 阅读全文
posted @ 2023-11-11 17:56 Elvis233 阅读(61) 评论(0) 推荐(0)
2023年11月3日
Air pollution
摘要： Air pollution consists of chemicals or particles in the air that can harm the health of humans, animals, and plants. It also damages buildings. Pollut 阅读全文
posted @ 2023-11-03 20:10 Elvis233 阅读(264) 评论(0) 推荐(0)