如果你用取火镜使太阳光线聚焦在干木头上，木头就会燃烧起来。
If you focus the sun's rays on dry wood with a burning-glass, it will start burning.
如果你超过350华氏度，即使是最耐热脂肪也会燃烧起来。
Even the most heat-resistant fats will burn if you go over 350 Fahrenheit.
如果你超过350华氏度，即使是最耐热脂肪也会燃烧起来。
Even the most heat-resistant fats will burn if you go over 350 Fahrenheit.
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