Definition: a warning that something will happen Level: B1
我妈妈给了我一个简短的提醒便条。
My mum gave me a short ___notice to remind me.
图书馆将关闭，直至另行通知。
The library will be closed ___until ___further ___notice.
对于通知如此仓促，我表示歉意。
I apologize for the short ___notice.
