12月22日，北京市環保局發布了“2014清潔空氣十大關鍵詞”，“APEC藍”居于首位，還包括了“人努力天幫忙”、 “鐵腕治污”、“源解析”、“告別黃標車”、“無煤化”、“淘汰升級”、“權威發布”、“區域共治”和“清新過年”。

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The Beijing Municipal Environmental Protection Bureau has released its top key words for 2014, with the first three being "APEC blue," "Effort and luck," and "Fight pollution with an iron hand."

北京市環保局日前發布了2014清潔空氣十大關鍵詞，排名前三的分別是“APEC藍”、“人努力天幫忙”和“鐵腕治污”。

APEC blue（APEC藍）毫無懸念地當選了第一大清潔空氣關鍵詞。“人努力天幫忙”的英文表達是Effort and luck，而“鐵腕治污”的英文表達是Fight pollution with an iron hand。

其余的清潔空氣關鍵詞分別為：

No. 4. Analysis of PM2.5 sources 源解析

No. 5. Say goodbye to "yellow label cars" (heavy-polluting vehicles) 告別黃標車（重污染機動車）

No. 6. No coal 無煤化

No. 7. Elimination and industrial upgrading 淘汰升級

No. 8. Authoritative weather information release 權威發布

No. 9. Coordinated and joint efforts (Beijing, Tianjin and Hebei province have cooperated closely in the anti-pollution campaign) 協同共治（京津冀及周邊地區協同共治大氣污染）

No. 10. "Fresh" Spring Festival (Beijing called on residents to set off fewer or no fireworks during the lunar New Year.) 清新過年（北京呼吁市民春節少放或不放煙花）

（中國日報網英語點津 陳丹妮）