How did Indians in America use fire?

美国的印第安人是如何使用火的？

youdao

The first idea I got was to use fire, because I thought lions were scared of fire.

我想到的第一个主意是用火，因为我认为狮子害怕火。

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We have to be careful when we use fire.

当我们用火时候必须小心。

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But he added that they must use the money to support services like police, fire, education and health care.

VOA: special.2009.01.09

They are said to use forty to fifty percent less wood than an open fire, and produce fifty to seventy-five percent less smoke.

VOA: special.2010.02.01

The farms feature improvised wiring, heat lamps and water and regularly catch fire so the authorities have been able to use fire safety laws to force home owners to carry out costly safety work.

BBC: RELATED BBC SITES

In battle mode players can use the fire button to disable the opponent's CarBot.

ENGADGET: CarBot lets you settle those grudges with battle mode

In its two variants, it offers zero risk options with unparallel speed of deployment, simplicity in use, fire power and reliability.

BBC: News Online