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| be versed in (чем-либо Dragon_Way) | |||
| be up to speed on | |||
| ориентирующая в: 47 phrases in 16 subjects |
| Artillery | 1 |
| Aviation | 1 |
| Business | 1 |
| Chemistry | 4 |
| Forestry | 1 |
| Formal | 1 |
| General | 18 |
| Idiomatic | 2 |
| Linguistics | 1 |
| Literature | 1 |
| Makarov | 6 |
| Mathematics | 1 |
| Medical | 3 |
| Military | 1 |
| Oil / petroleum | 4 |
| Psychology | 1 |