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caffeine
UK
/ˈkæfiːn/
US
/ˈkæfiːn/
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Explain why “caffeine” is usually an uncountable noun, with examples.
Compare “caffeine” and “caffeinated” and show when to use each.
Explain how “caffeine” is used before another noun in “caffeine tablets.”
Give me common collocations with “caffeine” and example sentences.
Give me five B2-level examples with “caffeine,” each with a Russian translation.
Compare “caffeine,” “stimulant,” and “coffee” in meaning and usage.
Quiz me with three questions about the meaning and use of “caffeine.”
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