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| efectiv; sigur (eficace) | |||
| eficáce | |||
| eficiént | |||
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эффективный : 14 phrases in 6 subjects |
| Agriculture | 1 |
| Construction | 5 |
| General | 4 |
| Mathematics | 1 |
| Microsoft | 2 |
| Thermal engineering | 1 |
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