短语词组短语Work sum -up 工作总结fine work -up 粉末再加工work -up dive 逐级潜水allergy work -up 敏感症检验period work -up 起动周期fines work -up 粉末再加工improve the work of opening -up 全面提高开放水平;全面进步开放程度 返回 work-up