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back-up service | |||
auxiliary service | |||
ancillary services; auxiliary services; support services | |||
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ancillary |
辅助 服务 : 18 phrases in 10 subjects |
Aviation | 3 |
Business | 2 |
Electronics | 3 |
Environment | 2 |
Horticulture | 2 |
International Monetary Fund | 2 |
Oil / petroleum | 1 |
Space | 1 |
Technology | 1 |
Transport | 1 |