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| uphill struggle (While I have received rave reviews for these courses I teach, I have an uphill struggle to fill them. Alexander Demidov); extremely hard (TranslationHelp); very difficult (TranslationHelp) | |||
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| as heavy as lead; enough to choke a horse (newbee); as hard as nails (человек); hard as nails (человек) | |||
| very heavy | |||
| очень тяжело: 44 phrases in 9 subjects |
| Business | 1 |
| Drilling | 1 |
| Finances | 1 |
| General | 19 |
| Makarov | 15 |
| Mass media | 1 |
| Oil / petroleum | 2 |
| Oil and gas | 1 |
| Slang | 3 |