powerhouse

Từ điển Oxford Advanced Learner 8th

power·house [powerhouse powerhouses] BrE [ˈpaʊəhaʊs] NAmE [ˈpaʊərhaʊs] noun
1. a group or an organization that has a lot of power
•China has been described as an ‘emerging economic powerhouse’.
2. a person who is very strong and full of energy