他们常常选择——现在依然这样选择——居住在那些气候较为寒冷的地区，比如俄勒冈、爱达荷，还有阿拉斯加，为的是逃避烟雾、犯罪，以及加利福尼亚州城市化进程中的其他问题。
Often they chose—and still are choosing—somewhat colder climates such as Oregon, Idaho and Alaska in order to escape smog, crime and other plagues of urbanization in the Golden State.
某种大气烟雾可能确实遮蔽了太阳光使得地球变得寒冷而恐龙适应不了——但这种烟雾不一定必须来自一颗小行星。
Some kind of atmospheric haze might indeed have blocked the sun, making the planet too cold for the dinosaurs — it just didn't have to have come from an asteroid.
铅铸的羽毛，光明的烟雾，寒冷的火焰，憔悴的健康。
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