ultra-violet

柯林斯詞典

ultraviolet /??ltr??va??l?t/

• 1. ADJ Ultraviolet light or radiation is what causes your skin to become darker in colour after you have been in sunlight. In large amounts ultraviolet light is harmful. 紫外的

  The sun's ultraviolet rays are responsible for both tanning and burning. 太陽的紫外線是皮膚曬黑和曬傷的原因。

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