额外的衣服 Extra clothing

带上额外的衣服 take extra clothes

外部服务的采购 Procurement Of external services

批给外界承办的服务 contract service

户外穿的衣服 outdoor clothing

外层的衣服 OUTER clothes

连续的课外服务性学习 ongoing cocurricular service-learning

应用服务外包的提供商 Application Services Provider

深入的外展服务 intensive outreach service

利用海外代理的服务 to utilize the services of overseas agents