the order of the day idiom
formal（议会或正式会议的）当日议程
in a parliament or in formal meetings, the list of matters to be discussed on a particular day
informal常见之物；盛行之物；重要之物
something that is very common or important
On these TV channels, reality shows and repeats are becoming the order of the day. 在这些电视台的节目中，真人秀节目和回放节目越来越多。