iform sb of/about sth知会；通知；通告
to tell sb about sth, especially in an official way
Please inform us of any changes of address.
地址若有变动请随时通知我们。
We will inform you of any change of time as soon as possible.
时间如有变更，我们将尽快通知你们。
They would inform him of any progress they had made.
他们会把他们取得的任何进步都告诉他。
The teacher will inform the parents of any progress the pupil has made.
老师会把该学生取得的任何进步都告诉其家长。
They are not fully informed about the changes.
他们不完全了解这些改变。
It was remiss of them not to inform us of these changes sooner.
他们粗心大意，没有早一些通知我们这些变化。
The school had been negligent in not informing the child's parents about the incident.
校方疏忽了，没有向这孩子的父母通报这件事。