inform sb of sth
She informed us of the change.
她通知了我们这个变化。
影响；赋予…特征；告发；检举；告知；向...传达知识。；传授信息或知识。；告发；检举。
To tell someone about something or give them information.
告知；向...传达知识。
To communicate knowledge to.
传授信息或知识。
To impart information or knowledge.
告发；检举。
To act as an informer; denounce.
赋予形态或特性；以(某品质)激励；以(原则、思想等)影响、感染。
To give form or character to; to inspire (with a given quality); to affect, influence (with a pervading principle, idea etc.).
一般现在时
Please inform me of any changes.
请告知我任何变化。
一般过去时
He informed the police about the accident.
他向警方报告了事故。
现在完成时
She has informed everyone about the meeting.
她已经通知了所有人关于会议的事。
Please inform the receptionist of your arrival.
请在抵达时通知接待员。
用法提示：及物动词，表示‘通知’，后接宾语和of短语说明内容。
The teacher informed us that the exam had been cancelled.
老师通知我们考试已经取消。
用法提示：及物动词，后接宾语和that从句，传达信息。
We were informed about the changes by email.
我们通过电子邮件被告知了这些变化。
用法提示：及物动词的被动语态，表示‘被告知’，后接about短语。
She informed us of the change.
她通知了我们这个变化。
He informed me that the meeting was cancelled.
他告知我会议取消了。
常指告密或揭发。
He informed on his colleagues for cheating.
他告发了同事作弊。
最通用，常用于日常对话；inform较正式
常用于官方或书面语境，强调正式告知
常用于商务或正式场合，含建议意味
非常正式，常用于法律或官方文件
grammar · medium
易错句子I will inform you the meeting time.
正确表达I will inform you of the meeting time.
动词inform不能直接接双宾语，表示通知某事时需要用介词of引出被通知的内容。
grammar · medium
易错句子He informed that the project was delayed.
正确表达He informed us that the project was delayed.
动词inform通常需要明确间接宾语（被通知的对象），不能省略。
inform一般指提供信息，notify强调正式书面或官方通知。
report常指详细报告或正式告发，而inform可指一般告知或告发，但report更正式且常涉及书面或官方渠道。
通知某人某事
Please inform us of any changes in your schedule.
请通知我们您日程的任何变化。
告知某人关于某事
The leaflet informs customers about the new services.
传单告知顾客有关新服务的信息。
使某人随时了解情况
We will keep you informed of the progress.
我们会随时通知你进展情况。
告发某人
He was afraid that his partner would inform on him.
他害怕他的搭档会告发他。
通知公众
The government launched a campaign to inform the public about the risks.
政府发起了一场运动，告知公众这些风险。
告发, 检举
He decided to inform on his accomplice to get a lighter sentence.
为了获得较轻的刑罚，他决定告发同伙。
随时告知某人最新情况
Please keep me informed of any changes in the schedule.
请随时告知我日程上的任何变化。
消息灵通, 见多识广
She is well informed about current events.
她对时事消息灵通。
Dictionary facts from ECDICT, WIKTIONARY.