重点词汇
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多层次
multiple-echelon; multilayer; multilevel
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服务
service; hospitality; ministrations; serve; minister; be in the service of; give service to
中英释义：
多层次服务
时间: 2025-10-31 12:10:42
service at all levels
中英释义：
service at all levels
多层次
multiple-echelon; multilayer; multilevel
服务
service; hospitality; ministrations; serve; minister; be in the service of; give service to