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单词 sun block
释义 sun block 也作 sun blockern.(名词)
  1. A preparation, as of PABA, that prevents sunburn by filtering out the sun's ultraviolet rays, usually offering more protection than a sunscreen.滤光剂:一种制剂,如对氨基苯酸制剂,通过滤出太阳的紫外线而防止太阳灼伤,通常比遮光剂的保护作用更有效
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