"预计"的意思是在事情发生以前先想好、先算出可能的结果。

The meaning of "预计" is to think ahead or calculate the possible outcome before something happens.

我们常用它来说天气、时间或人数,比如"预计明天下雨"。

We often use it to talk about weather, time, or number of people, for example, "预计明天下雨" (It is expected to rain tomorrow).