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| drought (a two-decade drought in funding for gun-violence prevention research fluggegecheimen) | |||
| long-term absence | |||
| длительное отсутствие: 15 phrases in 8 subjects |
| Computer networks | 1 |
| Electronics | 4 |
| General | 2 |
| Law | 2 |
| Power system protection | 1 |
| Programming | 3 |
| Telephony | 1 |
| Veterinary medicine | 1 |