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ビジー : 120 phrases in 10 subjects |
| Antennas and waveguides | 1 |
| Computer networks | 1 |
| Ecology | 1 |
| General | 13 |
| Mexican | 2 |
| Microsoft | 79 |
| Power lines | 1 |
| Radio | 12 |
| Sound recording | 2 |
| Telecommunications | 8 |
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