''Here are the beginnings of fire and engineering, the origins of pyrotechnology, and the bridge to more recent ceramic and metal technology,'' said Mr Brown.

“这是火和工程的开端，古代高温技术的源头，更晚的陶瓷、金属技术的桥梁。”布朗说。

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It rots the window frames, cakes the panes with salt, and corrodes anything metal down to brown, bleeding rust.

它腐朽了窗棂，晒得在窗玻璃上结了一层盐，无论任何金属都被腐蚀成了泛着棕色的血锈色。

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Even brown bag lunches can be more enjoyable, and eco-friendly, by replacing your plastic with metal and other aesthetically-pleasing, reusable materials.

通过用金属或其他美观和可再用的材料来替代塑料，甚至便当式的午餐也可以变得很享受和环保。

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Colorful beaded necklaces dangle from the branches of brown-paper trees that line the walls, and old-fashioned black metal streetlamps line the hallway.

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Flip them and brown the other side (if they stick, loosen them with the edge of a sharp metal spatula).

NPR: Recipes: 'The Herbal Kitchen'