build-ups
A build-up is a gradual increase in something.
There has been a build-up of troops on both sides of the border.
边境两边都在增加兵力。
The build-up to an event is the way that journalists, advertisers, or other people talk about it a lot in the period of time immediately before it, and try to make it seem important and exciting.
The exams came, almost an anticlimax after the build-up that the students had given them.
在学生们一番大造声势之后,随之而来的考试却出乎意料地平淡。