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呼叫中 : 25 phrases in 10 subjects |
| Automobiles | 1 |
| Computer networks | 1 |
| Electronics | 10 |
| Information technology | 1 |
| Multimedia | 1 |
| Shipbuilding | 1 |
| Space | 1 |
| Sports | 1 |
| Technology | 1 |
| Telecommunications | 7 |
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