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| коптение | |||
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| корпеть (with something); прокорпеть (часто plug away); биться (to continue doing something even though it is difficult or boring – often + at She kept plugging away at her homework. george serebryakov); вкалывать (george serebryakov); усердствовать (VLZ_58); стараться изо всех сил (vogeler) | |||
| пахать (george serebryakov) | |||
| коптеть (at) | |||
| покоптеть (at) | |||
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plugging away : 4 phrases in 3 subjects |
| Figurative | 2 |
| Informal | 1 |
| Makarov | 1 |