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| English | Russian |
| be deeply acquainted | обладать глубокими знаниями (with ... – ... чего-либо Alex_Odeychuk) |
| be deeply involved | активно заниматься (чем-л i.e. – Many geologists have been deeply involved in this research. Alex_Odeychuk) |
| deeply-penetrating | глубокопроникающий (igisheva) |