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更新态 : 17 phrases in 10 subjects |
| Aviation | 2 |
| Business | 1 |
| Computer networks | 1 |
| Ecology | 1 |
| Electronics | 3 |
| Information technology | 2 |
| Librarianship | 1 |
| Mechanics | 1 |
| Space | 3 |
| Technology | 2 |
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