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focal
UK
/ˈfəʊ.kəl/
US
/ˈfoʊ.kəl/
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AI Expert
Explain the different meanings of “focal” and when each is used.
Show how “focal point” is used in the example and give other common collocations.
Compare “focal” with “central,” “main,” and “key.”
Explain where “focal” appears in a sentence and how it modifies a noun.
Give five B2-level examples of “focal” in different contexts, with Russian translations.
Explain the specialized uses of “focal” in optics, photography, and medicine.
Give me a short exercise to practise using “focal” and check my answers.
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