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on behalf of + noun/pronoun
最常用，表示代表某人或某组织。
I am writing on behalf of my company.
我代表我的公司写信。
n. 利益, 方面
behalves — plural of behalf
先理解核心含义，再看它在真实句子里的用法。
n. 利益, 方面
as the agent or representative of; for the benefit of
I am writing on behalf of my company.
我代表我的公司写信。
某人或某物的利益、好处或福祉。
The interest, benefit, or wellbeing of someone or something.
角色或正当位置；权威
One's role or rightful place; stead or authority.
On behalf of the entire team, I would like to thank you for your support.
我代表整个团队感谢你的支持。
She accepted the award on behalf of her absent colleague.
她代表缺席的同事接受了奖项。
The lawyer spoke on behalf of his client in court.
律师在法庭上代表他的当事人发言。
最常用，表示代表某人或某组织。
I am writing on behalf of my company.
我代表我的公司写信。
用于代词所有格，意义同'on behalf of sb'。
She accepted the award on his behalf.
她代他领了奖。
较少用，表示为了某人的利益；现在通常用'on behalf of'。
They raised money in behalf of the charity.
他们为了慈善机构筹款。
Not this
I am writing in behalf of my company.
Use this
I am writing on behalf of my company.
错误：使用了'in behalf of'，但标准表达是'on behalf of'。'on behalf of'是固定短语，表示代表某人或某方。
Not this
He spoke on behalf his team.
Use this
He spoke on behalf of his team.
错误：缺少介词'of'。'on behalf of'是一个三词短语，必须包含'of'，不能省略。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
代表，为了...的利益
I am writing on behalf of my colleagues.
我代表我的同事们写信。
代表某人，以某人的名义
He accepted the award on her behalf.
他代表她接受了奖项。
为了...的利益（较少用）
They collected money in behalf of the charity.
他们为了慈善机构募捐。
代表...行事
The lawyer will act on behalf of the client.
律师将代表客户行事。
代表...发言
She spoke on behalf of the committee.
她代表委员会发言。
代表
I am writing on behalf of the entire team.
我代表整个团队写信。
为了...的利益
She spoke in behalf of the charity.
她为了慈善机构的利益发言。
代表某人
He accepted the award on his father's behalf.
他代表他父亲接受了奖项。
Use behalves naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
behalf 听起来像 'be half'，想象你代表另一半人发言，为了他们的利益。
formal; contexts: legal, business, official statements; 通常用于正式场合，如法律、商业或官方声明中，常以'on behalf of'短语出现。
通常用于 on behalf of 结构
Dictionary facts from ECDICT, WIKTIONARY.