chalky /ˈʧɔkɪ/ 形容詞
  白堊樣
  Chalk·y a. Consisting of, or resembling, chalk; containing chalk; as, a chalky cliff; a chalky taste.
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  chalky
       adj 1: composed of or containing or resembling calcium carbonate or
              calcite or chalk [syn: calcareous]
       2: having the color of chalk; "she turned chalky white"