• Concentrate around Гл.
• Concentrate in Гл.
• Concentrate on Гл.
• Concentrate (one's) efforts towards (something)
• Concentrate (one's) focus
• Concentrate (one's) mind
• Concentrate (one's) resources
• Concentrate (someone's) attention
• Concentrate (someone's) efforts
• Concentrate (someone's) mind
• Concentrate (someone's) thoughts
• Concentrate around idea
• Concentrate around issue