《华盛顿邮报》报道，专家说，主要原因之一是，农民对马利筋植物使用除草剂，而这些蝴蝶以马利筋植物为食。
The Washington Post reported, one of the main reasons, experts say, is that farmers have used herbicides on the milkweed plants that these butterflies feed on.
格罗根先生将书专注于以马利为中心的章节中，形成了灵活的文风，并在他所描写的任何事件中都能窥见马利的疯狂之处。
Mr. Grogan keeps the book agile by sticking to Marley-centric episodes and by locating a crazed bit of Marleyness in any event he describes.
蒙哥马利地方议会成员准备推行碳税以应对全球变暖问题，这个法案适用于本地最大温室气体排放者。
Montgomery county Council members are poised to pass a carbon tax to fight global warming that would apply only to the county's largest emitter of greenhouse gases.
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