If you are the meeting organizer, then there are times when you have to cancel a meeting. Here are some sentences you can use for this situation. 

如果你是会议组织者，那么有时你不得不取消会议。这里有一些你可以用在这种情况下的句子。

"There are four people who will not be able to attend the meeting tomorrow. I am going to reschedule the meeting to a more convenient time." 

有四个人不能参加明天的会议，我将把会议重新安排到一个更方便的时间。

"The director asked that we postpone the finance meeting until the quarterly report comes out. So I'll send an update with the new date and time later this week." 

季度报告出来之前，经理要求我们推迟财务会议。所以我将在本周晚些时候发送更新日期和时间。

Some meetings are weekly meetings that occur at the same time. It is common that these meetings are canceled when there is nothing to talk about. 

有些会议是在同一时间举行的每周例会，很常见的是，这些会议在没有什么可谈的情况下被取消。

"There is nothing new to discuss this week, so we are going to cancel this week's agenda meeting." 

这个星期没有什么新东西可讨论，所以我们将取消本周的议程会议。

"I am running late this morning. Let's postpone the meeting until the afternoon." 

今天早上我要迟到了，我们把会议推迟到下午吧。

"I can't make it in tomorrow, so let's cancel this week's meeting. I'll email everyone if something new comes up." 

我明天不能来了，所以我们取消本周的会议吧，如果有新的变化，我会给每个人发邮件。