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- Keywords trace elements;viral hepatis B;casecontrol study; 微量元素;乙型病毒性肝炎;相关研究;
- Keywords breast cancer;environmental risk factors;casecontrol study;environmental pollutants;endocrine disruptor chemicals（EDCs）; 乳腺癌;环境危险因素;病例对照研究;环境污染物;内分泌干扰物;
- Wang YJ, Shi Q, Peng BG. A Casecontrol study on the risk factors of cervical spondylosis[J]. Chin J Tradit Med Traumatol 王拥军，施杞，彭宝淦.;颈椎病危险因素的病例对照研究[J]
- His years of study were useful in his job. 他多年的学习有助于他的工作。
- How much did it cost you to study abroad? 你出国深造花了多少钱？
- She secludes herself in her study to work. 她把自己关在书房里埋头研究。
- This reference book is very useful to our study. 这本参考书对我们的研究很有用。
- She will never let slip a chance to study abroad. 她绝不会错过出国学习的机会。
- Her social life get in the way of her study. 她的社交生活妨碍了学业。
- Study well and make progress every day. 好好学习，天天向上。
- She paces the whole class in English study. 她在学习英语方面为全班树立榜样。
- Chemists study the nature of gases. 有的化学家研究气体的性质。
- I have a good mind to study abroad. 我很想到国外去读书。
- It is harder to teach than (to) study. 教书比读书辛苦。
- Well as he does in study, he is not arrogant. 虽然他功课很好，却一点都不傲慢。
- You must study hard for the benefit of your own. 为了你自己的利益你必须努力学习。
- You must pay attention to your study. 你必须专心学习。
- Do you feel any aversion to hard study? 你嫌恶努力学习吗？
- I do not care to study English today. 我不喜欢今天念英文。
- He devoted himself in philosophical study. 他致力于哲学研究。
