The objective is to study the impact of extra water on the immune system in mice.

目的是研究多余的水对老鼠免疫系统的影响。

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When he got back, he switched labs to study how cerebrospinal fluid nourishes the developing nervous system.

回来后，他将实验室里的研究课题转向了脑脊液如何滋养发发育中的神经系统。

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A government study recommended a national highway system of 33,920 miles, and Congress passed the Federal-Aid Highway Act of 1944, which called for strict, centrally-controlled design criteria.

一项政府研究建议建设一个33,920英里的全国公路系统，国会通过了1944年的《联邦援助公路法案》，该法案要求制定严格的、集中管控的设计标准。

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Doctor Pascal Meier of the University of Michigan Health System led an international study of one thousand five hundred patients.

VOA: special.2010.09.15

Like the Russian formalists--and in a way like the New Critics -talking about their "academic" colleagues, Saussure is vexed by the messiness and lack of system in the study of linguistics.

这一点和形式主义者，新批评论者,这些学院派的人们很相像，索绪尔对语言学的杂乱,和无章感到恼火。

耶鲁公开课 - 文学理论导论课程节选

But I think it's better to come study here rather than stay in Spain just because of the system again.

但我觉得来到这里学习比留在西班牙好，因为这里的体制比较好。

来自西班牙 - SpeakingMax英语口语达人

It will study the system in New Zealand, where mandarins sign a contract setting out expectations.

BBC: Failing civil service mandarins 'may face sack'

Although poor, he went on to study power system automation through correspondence classes at the Shanghai University of Electric Power.

FORBES: YGSOFT: Eyes on Chinese Energy

However, the latest detailed findings from the Whole System study paint a more complex picture.

BBC: Are the benefits of telehealth a myth?