concentrate on

Từ điển WordNet v3.1 - WordNet Dictionary

verb

center upon (Freq. 5)
- Her entire attention centered on her children
- Our day revolved around our work
• Syn:
focus on, center on, revolve around, revolve about, center
• Derivationally related forms:
center (for: center), centering (for: center)
• Hypernyms:
refer, pertain, relate, concern, come to,
bear on, touch, touch on, have-to doe with
• Verb Frames:
- Something ----s somebody
- Something ----s something
- Something is ----ing PP (for: center)
- Somebody ----s PP (for: center)