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envelope
UK
/ˈɛnvəˌləʊp/
US
/ˈɛn.və.loʊp/
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Explain the difference between “envelope” meaning a letter cover and a virus’s protective layer.
Compare “envelope” with “package” and “wrapper.”
Give five common collocations with “envelope” and use them in sentences.
Explain how “envelope” is used in the context of viruses.
Explain the idiom “push the envelope” and give two examples.
Compare the British and American pronunciations of “envelope.”
Check whether “envelope” is normally an adjective or a noun used before another noun.
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