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cobalt
UK
/ˈkəʊbɒlt/
US
/ˈkoʊbɔlt/
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Explain how “cobalt” is used as a noun and an adjective, with examples.
Explain why “cobalt” is uncountable in “Cobalt is used in the production of batteries.”
Show common collocations with “cobalt,” such as “cobalt mining” and “cobalt-based batteries.”
Explain the difference between “cobalt” and “cobalt blue.”
Compare the British and American pronunciation of “cobalt.”
Give five B2-level example sentences with “cobalt” and their Russian translations.
Create a short exercise to help me use “cobalt” in a sentence about technology or materials.
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