One of the most captivating natural events of the year in many areas throughout North America is the turning of the leaves in the fall.

北美许多地区一年中最迷人的自然现象之一是秋天树叶的变色。

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That makes them natural adopters of smartphones as incomes rise and prices fall.

随着收入的提高和智能手机价格的下降，他们是智能手机天生的吃螃蟹的人。

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As solar and wind prices continue to fall, natural gas will stay on top.

尽管太阳能和风能价格持续下跌，天然气却仍将保持成本优势。

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Desired savings will rise above desired investment once again and the natural rate will fall.

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Energy ETPs experience more tactical action, with flows rising when crude oil and natural gas prices fall and selling occurs when prices rise, he said.

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Despite the sharp fall in natural gas prices in the U.S. caused by rising production from shale and other unconventional rock formations there was a time when early investors in shale gas made fat profits, a process which is being mirrored in Australia.

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