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| 非正式团体组织 | |||
| 非正式组织; 非正式团体 | |||
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informal group : 14 phrases in 6 subjects |
| Aviation | 1 |
| Business | 1 |
| International trade | 1 |
| Management | 2 |
| Name of organization | 8 |
| United Nations | 1 |
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