美国的印第安人是如何使用火的？
我想到的第一个主意是用火，因为我认为狮子害怕火。
The first idea I got was to use fire, because I thought lions were scared of fire.
其中一个男子用火把照着他的脸。
她用火龙果来展示秋天丰富的色彩。
She used the dragon fruit to show the rich colors in autumn.
它利用火的热量发电。
这房间用火炉取暖。
他们会让人用火车把药从安克雷奇运到尼纳纳。
They would have the medicine sent by rail from Anchorage to Nenana.
例如，美洲的印第安人用火制造烟雾来传递信息。
The Indians in America, for example, used fire to make smoke as a message.
由于使用火和磨石，大量谷物被消耗并转化为主食。
With the use of fire and grindstones, large amounts of cereals were consumed and transformed into staple foods.
我们用火焰测试编制了一个包含多种元素的光谱库。
A kind of spectroscopic library of elements was compiled using flame tests.
用火腿做的。
用火清理灌木丛，让发芽的种子获得生长所需的阳光。
Fires clear the brush, allowing germinating seeds to receive the sunlight they need to grow.
那么，你要知道，那里用火红的字写着：大木偶戏院。
Know, then, that written in letters of fire I see the words: GREAT MARIONETTE THEATER.
冰岛的首都雷克雅未克完全是用火山热产生的地热能来供热的。
Reykjavik, the capital of Iceland, is entirely heated by geothermal energy derived from volcanic heat.
这会产生蒸汽，这些蒸汽可以在不使用火的情况下用于填充小型蒸汽火车的水箱。
This would generate steam that could be used to fill tanks on a small steam train without the use of fire.
因此，为了缩短运输时间，Trancorp计划改用火车和驳船将货物运送到伯兰。
Therefore, to reduce shipping time, Trancorp plans to switch to trains and barges to transport goods to Burland.
这些木雕和石雕都是他用火雕刻和标记的，用以说明数百万年来塑造我们星球的力量的暴烈程度和强度。
These are wood and stone sculptures that he's carved and marked with fire to illustrate the ferocity and intensity of the forces that have shaped our planet over millions of years.
尽管智人在那个时候还不存在，但这一发现并不能为认为在智人之前就有节制地使用火的说法提供任何依据。
Although homo sapiens did not exist at that time, this discovery provides no basis to the claim that the controlled use of fire preceded the Homo sapiens.
哈佛大学的一位人类学家提出，用火做饭可以追溯到近200万年前，这可以解释人类的一些特征，比如大脑大，牙齿小。
A Harvard anthropologist has proposed that using fire to cook food could be dated back to almost two million years and that it could explain hominid features like having a large brain and small teeth.
美国电力研究协会（EPRI）负责闪电项目的经理拉尔夫·伯恩斯坦说：“我们可以用火箭让闪电打到我们想要的地方。”
"We can cause the lightning to strike where we want it to using rockets," says Ralph Bernstein, manager of lightning projects at EPRI.
当我们用火时候必须小心。
工人们也用火来烧制玻璃。
如果我们不小心用火将有什么后果?
用火柴，不要用塑料壳的打火机。
换一个别的浏览器，推荐使用火狐。
你在使用火狐3.0浏览器吗？
他们就在这生产盐，然后用火车运走。
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