calendar

1. N-COUNT A calendar is a chart or device which displays the date and the day of the week, and often the whole of a particular year divided up into months, weeks, and days. 日历

There was a calendar on the wall above, with large squares around the dates. 墙的上方曾有一本日历，日期框在大方格里。

2. N-COUNT A calendar is a particular system for dividing time into periods such as years, months, and weeks, often starting from a particular point in history. 历法

The Christian calendar was originally based on the Julian calendar of the Romans. 公历最初是基于罗马的儒略历的。

3. N-COUNT You can use calendar to refer to a series or list of events and activities which take place on particular dates, and which are important for a particular organization, community, or person. 日程表

It is one of the hottest tickets on Washington's social calendar. 这是华盛顿社交日程表上最热门的入场券之一。