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optical
UK
/ˈɒptɪkəl/
US
/ˈɑːptɪkəl/
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Explain what “optical” means in “optical illusion.”
Compare “optical” and “visual”: when can one replace the other?
Teach me useful collocations with “optical,” such as “optical illusion” and “optical device.”
Explain how “optical” relates to “optics” and “optician.”
Give me five B2-level examples with “optical” and their Russian translations.
Quiz me with three questions about the meaning and use of “optical.”
Ask me to write a sentence with “optical,” then correct it.
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