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| hardly ever; very seldom; very occasionally (Anglophile); once in a way; scarcely ever; as rare as dogs in space (VLZ_58); once in a blue moon (Andy); very rarely (spanishru) | |||
| hardly ever (I hardly ever get sick. — Я очень редко болею. Alex_Odeychuk); almost never (практически никогда Alex_Odeychuk) | |||
| very rare (классификация нежелательных побочных реакций по частоте развития paseal) | |||
| once in a blue moon (Сomandor) | |||
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| one in a thousand | |||
| rare as hen's teeth; rare as rocking horse shit | |||
| very scarce | |||
| very rare | |||
| scarce as ice water in hell | |||
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| exotic (Among the exotic kinds of nuts are the bambarra groundnut from tropical Africa, the Chile hazel... I. Havkin) | |||
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очень редко : 37 do fraz, 10 tematyki |
| Hydrologia | 2 |
| Makarowa | 15 |
| Matematyka | 1 |
| Medycyna | 1 |
| Morski | 3 |
| Oceanografia | 1 |
| Pospolicie | 10 |
| Programowanie | 1 |
| Przysłowie | 1 |
| Wojskowość | 2 |