荧光 yíngguāng HSK7 fluorescence Definitions Defs Origin Strokes Stroke Words Sentences Sents 1 sentence 这件T恤在黑暗中会发出荧光。 zhè jiàn Txù zài hēi'àn zhōng huì fāchū yíngguāng. This T-shirt glows in the dark. Source: Dong Chinese Dictionary