betray sb/sth
用于表示对某人或某物不忠。
He betrayed his country by selling secrets.
他通过出卖机密背叛了自己的国家。
背叛；背弃；辜负
betrayed — past of betray
出卖；叛变；泄露（秘密）；无意中显露；暴露出；误导；使误入歧途；诱骗后抛弃
to be disloyal to someone who trusts you; to break faith or fail to keep a promise
背信弃义地或欺诈地交给敌人；叛逆地出卖。
To deliver into the hands of an enemy by treachery or fraud, in violation of trust; to give up treacherously or faithlessly.
对信任或信任者不忠；背叛；欺骗。
To prove faithless or treacherous to, as to a trust or one who trusts; to be false to; to deceive.
泄露秘密或名誉上不该公开的事,辜负信任。
To violate the confidence of, by disclosing a secret, or that which one is bound in honor not to make known.
故意违背他人信任而泄露(秘密等)。
To disclose (a secret, etc.) in deliberate violation of someone’s confidence.
泄露或显示(如谨慎应隐藏的事)；无意中透露。
To disclose or indicate, for example something which prudence would conceal; to reveal unintentionally.
误导；使遭受未预见的麻烦；引人误入歧途或犯错。
To mislead; to expose to inconvenience not foreseen; to lead into error or sin.
诱骗；诱拐(如承诺结婚)然后抛弃。
To lead astray; to seduce (as under promise of marriage) and then abandon.
一般现在时
He betrays his friends.
他背叛朋友。
past
She betrayed her country.
她背叛了她的国家。
现在进行时
You are betraying my trust.
你正在辜负我的信任。
规则动词
He felt hurt when his best friend betrayed his trust.
当他最好的朋友背叛了他的信任时，他感到很受伤。
用法提示：过去式betrayed表示背叛的意思，作谓语动词。
Her calm expression betrayed her nervousness.
她平静的表情暴露了她的紧张。
用法提示：过去式betrayed表示无意中暴露的意思，作谓语动词。
Betraying a secret is a serious violation of loyalty.
泄露秘密是对忠诚的严重违背。
用法提示：动名词betraying表示泄露的意思，作主语。
用于表示对某人或某物不忠。
He betrayed his country by selling secrets.
他通过出卖机密背叛了自己的国家。
常用于表示无意中透露情绪或秘密。
Her expression betrayed her nervousness.
她的表情暴露了她的紧张。
被动用法，强调被背叛者。
She felt betrayed by her closest friend.
她感到被最亲密的朋友背叛了。
表示将某人或某物交给敌方。
The informant betrayed the rebels to the government.
告密者将叛军出卖给了政府。
常用于为了金钱或利益而背叛，较口语化，比"betray"更强调利益动机
强调欺骗性背叛，常用于犯罪或间谍语境，较正式
非常口语化，常用于同伴之间告发，有贬义
比喻背后背叛，常用于人际关系，较口语化
正式用语，常指向警方等告发同伙，强调提供信息
grammar · medium
易错句子He betrayed to his country.
正确表达He betrayed his country.
betray 是及物动词，直接接宾语，无需介词 to。
grammar · medium
易错句子He betrayed on his wife.
正确表达He betrayed his wife.
表示背叛某人时，betray 直接接宾语，不加介词 on。
betray 强调背叛信任或忠诚，而 reveal 仅指使某事物为人所知，没有背叛的含义。
背叛某人
He would never betray a friend.
他绝不会背叛朋友。
辜负信任
She felt betrayed when her colleague betrayed her trust.
同事辜负了她的信任，她感到被背叛。
泄露秘密
He accidentally betrayed the secret.
他无意中泄露了秘密。
暴露情感
Her face betrayed her disappointment.
她的脸上流露出失望。
背叛的核心是破坏信任，因此信任是与背叛密切相关的概念。
背叛常涉及泄露秘密，因此秘密是与背叛相关的典型话题。
背叛往往发生在朋友之间，朋友是背叛行为中常见的一方。
背叛常指在联盟或合作关系中背信弃义，联盟是背叛发生的背景。
背叛与诚实相对，诚实是背叛的反面品质，常被提及。
暴露自己（无意中露出真性情或真实意图）
He tried to stay calm, but his trembling hands betrayed him.
他试图保持冷静，但他颤抖的双手暴露了他。
辜负某人的信任
She felt devastated when her best friend betrayed her trust.
当她最好的朋友辜负了她的信任时，她感到非常崩溃。
泄露秘密
He was accused of betraying the company's trade secrets.
他被指控泄露了公司的商业机密。
你也有份吗，布鲁图？
Caesar was betrayed by his closest ally.
凯撒被他最亲密的盟友背叛了。
你本是被选中的人！预言说你会消灭西斯，而不是加入他们！
Anakin's betrayal of the Jedi Order was devastating.
阿纳金对绝地武士团的背叛是毁灭性的。
Dictionary facts from ECDICT, WIKTIONARY.