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| English | Russian |
| cross a line in the sand | пройти точку невозврата (Together, we have crossed a line in the sand Taras) |
| Draw a line in the sand | определить ожидаемые результаты (fluent) |
| line in the sand | рубеж (idiomatic) a defining moment, a cutoff point. WT. a temporary boundary marker which is not to be crossed and which if erased can be redrawn  dictionary.com Alexander Demidov) |
| line in the sand | достигнутая точка, выше которой не подняться (переносное значение Amica_S) |