On the basis of the relevant results, the paper puts forward a thematic role system and makes an analysis and statistics to the double object constructions with 452 DOC verbs.

在借鉴已有研究成果的基础上，提出了针对现代汉语双宾构造研究的题元角色系统，并对452个双宾动词所构成的双宾构造进行了分析和统计。

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The new system expanded the role of family doctors.

新体制扩大了家庭医生的作用。

《牛津词典》

He played a major role in setting up the system.

他在建立这个系统的过程中扮演了主要的角色。

《牛津词典》

The respiratory system plays an important role in maintaining our internal environment at the proper level of oxygen, by bringing the right amount in.

呼吸系统的重要性在于,通过向体内输入适量的氧气,维持人体内环境中的氧平衡

耶鲁公开课 - 生物医学工程探索课程节选

The market stability is going to be the Fed, the Fed's role would be broadened so that it's not just a banking regulator, it's the whole financial system.

市场的稳定将成为联邦政府的工作，政府的职责将会扩大,那么政府将不再仅仅是银行业的调控者，而变成了整个金融系统的调控者。

耶鲁公开课 - 金融市场课程节选

Google will most likely add more depth of support for C2DM as it plays a critical role in contextual system development.

FORBES: Connect

But Motorola was not investing as it should have been in software integration systems that would allow it to retain its role as the system provider of choice.

FORBES: Icahn's Motorola Morass

Vilma's one-year suspension, because of his alleged role running a system in which the Saints paid bounties for injuring opponents, was nullified after a series of hearings, the final one handled by former Commissioner Paul Tagliabue.

WSJ: In the NFL, Power Shifts to the Players