无意中提及;脱口说出
let fall sth
(好像)无意中提及;脱口说出
to mention sth in a conversation, by accident or as if by accident
She let fall a further heavy hint.她似乎无意中又说出了一个明显的提示。
释义来自《牛津高阶英汉双解词典》第 9 版