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| быть обеспокоенным; быть озабоченным | |||
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心 : 178 phrases in 11 subjects |
| Biology | 1 |
| Crystallography | 3 |
| Electronics | 1 |
| General | 1 |
| Information technology | 1 |
| Metallurgy | 3 |
| Mining | 5 |
| Nuclear physics | 1 |
| Politics | 2 |
| Rail transport | 3 |
| Technology | 157 |
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