这个短语起到了承上启下的作用。
This phrase serves as a connecting link between the preceding and the following.
宋代医学教育在中国医学教育史上起着承上启下的作用。
The medical education of Song in China plays a vital role in the history of medical education.
利润指标在传统杜邦财务分析体系中起着承上启下的作用。
Profit target plays a connecting link role in Du Pont System.
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