Besides, smoke and exhaust fumes released (4) ___________ dozens of vehicles and factories result in air pollution in crowded residential areas.Đoạn văn14/33Besides, smoke and exhaust fumes released (4) ___________ dozens of vehicles and factories result in air pollution in crowded residential areas.Nhập câu trả lời ở đây0/3000 ký tựXác nhậnGiải thích from