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| be doubly sure; be absolutely positive (about something; в ч-либо just_green); be doubly sure; be absolutely positive (в ч-либо; about something just_green) | |||
| bet one's boots; know for a fact (to be certain,: I know for a fact that he did it. • I know for a fact that I have encountered the concept before. Val_Ships) | |||
| be dead certain; be dead sure | |||
| be absolutely certain (Alex_Odeychuk) | |||
| bet one's boots | |||
| bet one's ass | |||
| быть абсолютно уверенным: 11 phrases in 4 subjects |
| General | 2 |
| Makarov | 5 |
| Mathematics | 2 |
| Rhetoric | 2 |