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concentration
UK
/ˌkɒn.sənˈtreɪ.ʃən/
US
/ˌkɑːn.sənˈtreɪ.ʃən/
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Compare “concentration” meaning “amount of a substance” with “focus” meaning “ability to pay attention.”
Explain the grammar and common patterns in “the concentration of salt in the solution.”
Show when “concentration” means a gathering or cluster, and suggest more natural alternatives for each meaning.
Give five B2-level collocations with “concentration” and translate an example for each.
Compare “concentration,” “focus,” and “attention” in context, and explain when each sounds most natural.
Write three sentences using “concentration” in different senses, then translate them into Russian.
Create a short B2 quiz to test the different meanings of “concentration.”
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