 |
| retroceso: 118 phrases in 21 subjects |
| Antennas and waveguides | 1 |
| Chemistry | 6 |
| Communications | 6 |
| Criminal law | 1 |
| Earth sciences | 8 |
| Electronics | 18 |
| Environment | 1 |
| General | 5 |
| Industry | 3 |
| Information technology | 5 |
| Labor law | 2 |
| Law | 3 |
| Life sciences | 2 |
| Mathematics | 1 |
| Mechanic engineering | 8 |
| Metallurgy | 4 |
| Microsoft | 1 |
| Pharmacy and pharmacology | 1 |
| Statistics | 3 |
| Technology | 1 |
| Transport | 38 |