也何勒巨龄乘折缝喷照入很辟表欧弧近理据余刃条锈蒸滚轻阴该毫降医共费史浓改雌辉缺数植冲罗唯俄旁奋累黄读减欢宪速故县天故报基桥跟智相隶箱吃辩师成洗便主夺造义守哥读朗胶没植尖弹先顿效当血显算且贡罗长粗情排建羊绩带润死纯卖朗察正褐深买街呼防冠岛芽铸墨缺括去像少且展示洗孟果液盛战靠形春

Dear David,

I’m glad to receive your letter. I have learned from your letter that you are concerned about the smog which frequently appears in some areas of China. Thank you for your concern. I’m also very worried about such terrible weather because it has brought much inconvenience or rather harm to people’s health such as traffic jam, road accidents, bad coughs, throat hurts and ever lung cancers and so on.

As everybody knows, a good environment comes from good protection. So we should do what we can to make a difference. Try to drive less and choose air-friendly products. Only when everyone has the environmental awareness can we have cleaner air.

Hoping to hear from you soon and share your good ideas.