Definition
In a parliament or formal meeting, the list of topics scheduled for discussion on a given day.
（议会或正式会议的）当日议程
The order of the day included reviewing the budget proposal and discussing new environmental policies.
当天的议程包括审查预算提案和讨论新的环境政策。
At today's meeting, the first order of the day is to deal with the minutes from the last meeting.
在今天的会议上，第一项议程是处理上次会议的记录。
The chairman announced that the first order of the day would be to elect members of the committee.
主席宣布，当天的第一项议程是选举委员会成员。
Something that is very common, prevalent, or important.
家常便饭
In today's business environment, remote work has become the order of the day.
在当今的商业环境中，远程工作已成为常态。
With technological advancements, smartphones are the order of the day in modern society.
随着技术的进步，智能手机在现代社会中已成为常态。
Traffic congestion is the order of the day in this city.
交通拥堵在这个城市中已是常态。