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  1. Oxford Dictionary

    photochromic

    • IPA[ˌfəʊtə(ʊ)ˈkrəʊmɪk]

    英式

    • adj.
      (of a substance) undergoing a reversible change in colour or shade when exposed to light of a particular frequency or intensity
    • 釋義

    形容詞

    • 1. (of a substance) undergoing a reversible change in colour or shade when exposed to light of a particular frequency or intensity photochromic sunglasses
    • 更多解釋

    photochromic

    • IPA[ˌfōdəˈkrōmik]

    美式

    • adj.
      (of a substance) undergoing a reversible change in color or shade when exposed to light of a ... photochromic sunglasses

    Oxford American Dictionary