1. 用于：事实上它们适用于(serve as)历史的起源和构成力量. 但是马克思主义的那些根本概念,那些奠基性概念,不是马克思思想的根本概念. 关于历史,这些概念并不指称一种原本的naturans,而是指称一种naturata,一种被奠定的、被创造的、被生产的现实.
2. 作为,用作：send in呈报,递交,送来 | serve as作为,用作 | serve right活该,给应得的待遇
1. Teachers push students to master technical showpieces by rote to impress judges at nationwide competitions that serve as entrance exams for top schools.
2. Chinese ports serve as important departure points and destinations for summer cruise voyage in Asia, and also major ports of call for winter cruises.
3. The surplus cannot serve as a sustainable capital source for serious illness insurance.
4. Palm trees not only serve as a major cash crop, but also provide local people with other gifts.
5. The fight against terrorism reflects that a convergence of interests between two nations can serve as a catalyst for a strong rapport.
6. The fight against terrorism mirrors that convergence of interests between China and the United States and can serve as a catalyst for a strengthened rapport.
7. serve as
7. Academics participating in the project agree that China's joining of the WTO will serve as a catalyst for improving Chinese enterprises'corporate governance.
8. The solution offered here is that Jakarta has to provide a lavish budget to buy land in Bogor that can serve as water catchment areas.
9. This should serve as a cautionary tale to other local governments when it comes to decisions on similar structures.
10. Proteins in turn serve as building blocks and workhorses of the cell, vital to its structure and functions.