It frequently contributes to the smogs over los angeles .
同时它也常常引起洛杉矶上空的烟雾。
Along with a proposed environmental tax , this is likely to add to the costs of industry , but it should mean that china 's notorious smogs finally start to dissipate .
伴随环境税的征收，中国工业的成本必然提高，但这意味着中国声名狼藉的烟雾终于开始慢慢消散。
The promise of more transparency has been welcomed as an important step towards a clear-up of the foul smogs that plague urban china , but environment officials stress that more time is needed to turn grey skies to blue .
