人们写它，游说它并且很关心它。食品工业花了很多时间担心它。
People write about it, they lobby about it and care a lot about it and the food industry spends a lot of time worrying about it.
这份报告表明气候变化正在当下，就在我们的后院里面发生着，并且它影响着我们所关心的重要方面。
This report demonstrates that climate change is happening now, in our own backyards, and it affects the things that people care about.
它仅存储您所关心的数据，并且只遍历文档一次。
It stores only the data you care about, and you only pass through the document once.
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