专家们表示，另一个原因与美国林业局长达一个世纪的政策有关，即尽快扑灭野火。

Another reason, experts say, is related to the century-long policy of the US Forest Service to stop wildfires as quickly as possible.

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约72%的“不退休”受访者表示，他们一退休就会重返岗位，以保持心理健康；59%的受访者则表示这一选择与维持生计有关。

About 72% of "unretiree" respondents said that they would return to work once retired to keep mentally fit while 59% said it would be tied to making ends meet.

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刻板的白色可以表示刚性，而柔和的白色一般与未来和预言有关。

Stark white can indicate rigidity, but a softer white is generally associated with the future and prophesy.

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