inform/ɪn'fɔːm $ -'fɔːrm/

v. tell sb about sth esp. formally

v. [T] 告诉；通知：[inform sb about（或of） sth] Please inform us of the result. 请把结果通知我们。

◇[inform sb (that) ...] Jane informed me that you had left. 简告诉我你已经走了。

构词in- + form

常犯错误

✗ She has informed us her decision.

✓ She has informed us of her decision. 她已经告诉我们她的决定了。