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obsidian
UK
/əbˈsɪd.i.ən/
US
/əbˈsɪd.i.ən/
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AI Expert
Explain how “obsidian” is used as a noun and as an adjective.
Compare obsidian with ordinary glass and explain why it is called volcanic glass.
Give me useful collocations with “obsidian” and use them in context.
Write five B2-level sentences with “obsidian” and translate them into Russian.
Explain the difference between “made of obsidian” and “made from obsidian.”
Show me how to pronounce “obsidian” and mark the stressed syllable.
Quiz me with three questions about obsidian and its use in the example sentence.
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