假如你是李華，你的美國筆友Bill來信詢問你的家鄉(xiāng)是否有霧霾天氣，情況如何。請按下面提示寫一封電子郵件，開頭已給出。

介紹情況：

1．最近發(fā)生數(shù)次霧霾天氣；

2．人們已經(jīng)認(rèn)識到霧霾天氣的危害，正采取各種舉措減少其發(fā)生；

3．你自己為此做了什么或打算做什么。

注意：詞數(shù)1 00個左右。

參考詞匯：霧霾：smog

Dear Bill,

I'm glad to receive your letter. Thank you for your caring for the weather and my health. Now I’d like to tell you something about the smog.

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