the big leagues
成語所屬單字major-league
the big leagues — 慣用語
1. the highest or most important level of an activity or profession, not limited to
1.慣用語
釋義
最高層級；頂尖地位
the highest or most important level of an activity or profession, not limited to sports — for example, moving from a small local company to a large international corporation.
例句
After years of small theatre productions, Salma finally felt she had made it to the big leagues.
The company entered the big leagues when it signed a deal with a Japanese electronics giant.