Based on aehievementof research on air pollution,Urhan air pollution degree and hazard ratings were discussed,and plants used for air pollution monitering were presented also.是什么意思_Based on aehievementof research on air pollution,Urhan air pollution degree and hazard ratings were discussed,and plants used for air pollution monitering were presented also.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句