居里夫人长期从事放射性元素研究，身体每况愈下，放射性元素严重灼伤她了胳膊和手臂，或许还引起致她死亡的白血病，年仅58岁。
The downsides were also great. Marie's work with radioactive elements inflicted serious burns to her arms and hands - and perhaps triggered the leukemia that killed her at age 58.
暴露于紫外线下的皮肤激发摄入物质分子，引起组织损伤—严重充血及灼伤，几乎总是立刻发生。
Exposing the skin to ultraviolet rays excites molecules of the ingested substance, causing damage to tissue - severe redness and sunburn, for example - that is almost immediately apparent.
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