That saliva was their next study subject.

唾液是他们的下一个研究课题。

youdao

It is a long study subject to study the sports value conception.

对体育价值观念问题的研究，是一个长久的课题。

youdao

It was an attempt to elevate football to a subject worthy of serious study.

这是试图将足球拔高成一门学科来进行严肃的研究。

《牛津词典》

What do you think is the most popular subject of study for international students at colleges and universities in the United States?

VOA: special.2009.01.08

I think it's reasonable for people who are considering the study of a particular subject in a college course to ask why they should.

大家都想将这一科目,作为一门学问做深入的研习,所以这个问题显得很为必要

耶鲁公开课 - 古希腊历史简介课程节选

But what I should also report to you is that I think there is a widespread consensus among most people that study the subject.

我之所以给你们整理出来是因为,对于这方面的研究有一个比较统一的观点

耶鲁公开课 - 古希腊历史简介课程节选

Currently pupils can sit a series of bite-sized exams as they study a subject.

BBC: Government to phase out modular GCSEs from 2012

Of course, this study is subject to the caveats that it: (a) only involved one decision making task and (b) only involved undergraduate students.

FORBES: Have a Tough Decision to Make? Science Says: 'Sleep On It!'

Personally, I just want to let anyone who wants to study this subject further that I am ready, able and willing to nap in a hammock.

FORBES: For the Best Naps, Use a Hammock