群组研究的英文怎么说
群组研究的英文：cohort study
cohort是什么意思：
n. 步兵大队；一帮人
[*]cohort analysis traces the subsequent vital history of such cohorts
对同批人进行分析能追溯出这种同批人随后的重大历史。[*]The gangster walked into the room surrounded by his cohort.
一名匪徒走进被他的一帮人包围的屋子。 [*]The cashiered dictator and his cohorts have all written their memoirs
被革职的执政官和他的同谋者已经写了他们的实录，[*]The cashiered dictator and his cohorts have all written their memoirs.
被革职的执政官和他的同谋者已经写了他们的实录。[*]HCV-796 drug levels appeared to reach a plateau at the 1000 mg cohort.
药物水平比例似乎在1000 毫克步兵大队到达高地。study是什么意思：
n. 学习，研究；结论，研究成果；学问，课题；书房
v. 学习，研究；细察；端详
[*]There is no satiety in study
学无止境[*]This is a studied remark.
这是经过深思熟虑的评语。 [*] This is a macrocosm study.
这是一个整体性研究[*]creation and study
创作与习作 [*]Social studies is the study of how man lives in societies.
社科课程是对人们怎样在社会中生活的研究。
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