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| trabajos por contrata | |||
| contrato de tarea | |||
| contract work: 19 phrases in 8 subjects |
| Agriculture | 1 |
| Economy | 2 |
| Education | 2 |
| Labor law | 2 |
| Law | 7 |
| Marketing | 3 |
| Materials science | 1 |
| Social science | 1 |
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