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| it is known for certain (Anglophile); know for a fact (требует замены конструкции с личной на безличную Beloshapkina); it is known for a fact (It is known for a fact, because it is something that already took place. • It is known for a fact that the Chinese made rockets and fireworks long before gunpowder was used in Europe. 4uzhoj) | |||
| know full well | |||
| доподлинно известно: 3 phrases in 2 subjects |
| General | 2 |
| Informal | 1 |