当你吃含(红)辣椒的辣味食品时，你口中的灼烧感来源于辣椒素，这种油性成份是辣椒及辛辣食物中所含有益健康的化合物。
That burning sensation in your mouth when you eat foods spiced with cayenne (red) pepper comes from capsaicin, the oily compound behind most of the health benefits of cayenne and its peppery Cousins.
西红柿是番茄红素的主要来源，那是一种有效的抗氧化成份同时也被认为可以防止皮肤晒伤。
Tomatoes are a major source of lycopene, a potent antioxidant also thought to protect against sunburn.
本文通过对青海地区青铜器的成份分析及其铸造方法的分析，对该地区发现的青铜器来源问题进行了探讨。
Based on the study of composition and casting methods of the bronze artifacts unearthed from Qinghai area, this article dis - cusses the sources of those bronze products.
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