| |||
| история проблемы; предыстория проблемы | |||
|
background of problem : 5 phrases in 3 subjects |
| General | 3 |
| Makarov | 1 |
| Mathematics | 1 |
| |||
| история проблемы; предыстория проблемы | |||
|
background of problem : 5 phrases in 3 subjects |
| General | 3 |
| Makarov | 1 |
| Mathematics | 1 |