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on behalf of
01
used to indicate that someone is acting or speaking for another person or group
On behalf of
01
for someone's benefit (usually expressed as `in behalf' rather than `on behalf' and usually with a possessive)
Пример
The mayor delivered a speech on behalf of the city council.
She accepted the award on behalf of her team.
She signed the contract on behalf of the company.
The lawyer spoke on behalf of her client during the court proceedings.
He donated money to the charity on behalf of his family.