In 2015, the US Forest Service for the first time spent more than half of its $5.5 billion annual budget fighting fires—nearly double the percentage it spent on such efforts 20 years ago.

2015年，美国林务局首次使用55亿美元年度预算的一半以上用于灭火——这几乎是20年前火灾支出所占比例的两倍。

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The final quarter of the double diamond model is the delivery stage, where the resulting product or service is finalised and launched.

双钻石模型的最后一个阶段是传达阶段，在这个阶段，产品或服务完成并启用。

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Double key secure means the user must authenticate two systems — the application server (at the hosting service provider) and the financial institution.

双重密钥安全表示用户必须通过两个系统的认证-应用程序服务器(位于主管服务供应商)和金融机构。

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Guernsey had a double-decker bus service in the 1980s, but officials said there had not been sufficient demand to revive it.

BBC: Guernsey deputy wants double-decker buses like Jersey

Texas, for example, imposes a levy on home pages and double- taxes Internet service providers -- once for leasing phone lines and again for access to those same lines.

FORBES: Fact and Comment

The longest delays were reportedly seen at passport control on Wednesday, but queues have also been seen over the past month, with some UK and other European Economic Area passengers said to have experienced waits of up to an hour - more than double the 25-minute "service standards" target set by the Home Office.

BBC: Heathrow queues: Border Force 'ready' for Olympics