This is because sports events with football stars’ endorsement, for example, will captivate a huge number of audiences who normally have deeply-rooted allegiances and are also potential customers.
Is 'allegiance' used correctly?
" Allegiance usually refers to a loyalty that is considered extremely important, such as to a country, cause, political party, or leader. We do not pledge allegiance to a football hero. It is usually non-count.
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I would use "loyalty."
Allegiance usually refers to a loyalty that is considered extremely important, such as to a country, cause, political party, or leader. We do not pledge allegiance to a football hero.
It is usually non-count.
Nh?t Bình a huge number of audiences
That is not used correctly. "Audience" is usually non-count.
Nh?t Bình deeply-rooted
Compound with adverbs in "-ly" do not take the hyphen ("deeply rooted'), but actually you want "deep-rooted", anyway.