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Cobalt is a hard, silvery-blue metal — a chemical element you'll see on the periodic table. But most students meet the word through 'cobalt blue', a strong, deep blue color used to describe paint, glass, or clothing, named after the rich blue color this metal's compounds can make.
鈷（化學元素）；鈷藍色
原始詞典資料6 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
Cobaltname
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A place in the United States:
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A place in the United States:
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A place in the United States:
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A town in Timiskaming District, Ontario, Canada.
cobaltnoun/ˈkəʊ.bɒlt/
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A chemical element (symbol Co) with an atomic number of 27: a hard, lustrous, silver-gray metal.
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Cobalt blue.
- And although we’ve certainly seen a variety of blue shades — from periwinkle to cobalt and even Dean Cain’s indigo-washed costume from the 1990’s TV show “Lois & Clark” — Superman’s uniform is still instantly recognizable across generations. In fact, there is only one film — Zack Snyder’s 2013 “Man of Steel” — in which Superman does not wear his iconic red belted trunks.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。