break up B1 phrase UK
When schools and colleges, or the teachers and students who go to them break up, their classes stop and the holidays start .
We broke up for the holidays in June. 我們六月份放假。
let out phrase US
When something that people go to, such as school or a show, lets out, it ends and everyone leaves.
When does school let out for the summer? 學校甚麽時候放暑假?

( 放假 Cambridge Chinese (Traditional)-English Dictionary 的翻译 © Cambridge University Press)