英语词汇pollution warning system简单造句、意思、用法及例句-英语例句辞典

单词	pollution warning system
例句	原声例句新概念英语第三册词汇随身听附字幕 A pollution warning system is being established. 正在建立一个污染报警系统。 CCTV 见闻 The orange alert is the second most severe in the country's four-tier air pollution warning system. 橙色预警是中国四级空气污染预警系统中第二严重的。
随便看	mime mime artist mimed mimeograph mimeographed mimeographing mimeographing machine mimeograph machine mimeograph machines mimeographs mimes mimeses mimesis mimetic mimetically mimetic form mimetics mimetite mimetites mimic mimical mimic death mimic effect mimic expression mimic function

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