| English | Russian |
| grope about in the interstices of one's brain cells | шевелить извилинами (He groped about in the interstices of his brain cells but could not find a feasible plan of escape. Taras) |
| study the changes that occur in the adolescent brain | изучать изменения, которые происходят в тканях мозга подростка (bigmaxus) |
| the disease probably has its seat in the brain | это заболевание, вероятно, коренится в мозгу |