| 单词 | cobalt |
| 释义 | cobaltcobalt /ˈkoʊbɔlt/ noun [uncountable] 1 (symbol Co) science, chemistry a shiny silver-white metal that is a chemical element, and that is used to make some metals and to give a blue color to some substances2a deep blue color, or a bright blue-green color [Origin: 1600–1700 German kobalt, from kobold goblin; because goblins were thought to mix it in with silver found in the ground]—cobalt adjective |
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