концентрироваться: 69 phrases in 16 subjects |
American usage, not spelling | 1 |
Business | 2 |
Electronics | 1 |
General | 15 |
Idiomatic | 1 |
Informal | 1 |
Makarov | 37 |
Mass media | 2 |
Mathematics | 1 |
Military | 1 |
Physics | 1 |
Programming | 1 |
Psychology | 2 |
Slang | 1 |
Technology | 1 |
Tibetan | 1 |