photochemical smog
noun [ C or U ] uk/ˌfəʊ.təʊ.kem.ɪ.kəl ˈsmɒɡ/ us/ˌfoʊ.t̬oʊ.kem.ɪ.kəl ˈsmɑːɡ/
光化烟雾
a fog caused by light from the sun shining on chemicals in the air produced by traffic and industry
英汉双解词典收录81607条英汉双解翻译词条，基本涵盖了全部常用单词的读音、翻译及用法，是英语学习的有利工具。