在线词典
在线词典，是一款在线使用的中英文查词词典。本工具支持查询英文和中文单词及词组的含义，查询效率高、结果丰富，包括单词变体、常用短语、英英释义、同义词、同根词、词语辨析等，是外语学习者必备的在线查词工具。
输入要查询的单词：
prospective cohort study
查词链接：
https://www.dute.org/dict/prospective_cohort_study复制链接 前瞻性队列研究：一种时间纵向的研究方法，通过观察一组人群随着时间推移，研究某些特定因素对某一结果的影响。
查看英英释义
abstract:
A prospective cohort study is a cohort study that follows over time a group of similar individuals (cohorts) who differ with respect to certain factors under study, to determine how these factors affect rates of a certain outcome. For example, one might follow a cohort of middle-aged truck drivers who vary in terms of smoking habits, to test the hypothesis that the 20-year incidence rate of lung cancer will be highest among heavy smokers, followed by moderate smokers, and then nonsmokers.
网络释义
前瞻性群组研究
... prospective survey 前瞻性调查研究... prospective cohort study 前瞻性群组研究... prospective return 预期收益 ...
常用短语
- historical prospective cohort study历史前瞻性队列研究
- a prospective cohort study项前瞻性队列研究
- retro-prospective cohort study世代研究法
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你是不是想查找：
- {typos}
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{phones} {trans} {trans_ee} {exam_types}{web_trans} {variants} {phrases} {synonyms} {rels} {discriminations} 查词链接：
{link}复制链接{phones}
{text}：[{value}]{trans}
{trans}
{pos}
{tran}
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查看英英释义
{trans}
{pos}
{list} {tran}
{words}{word}同义词： {words}
{pos}
{words}
{exam_types}
单词变体
- {variants}
常用短语
- {phrases}
网络释义
{web_trans}
{tran}
{detail}
近义词
{synonyms}
{pos} {tran}
{words}
同根词
{rels}
{pos}
{words}
{word}{tran}
词语辨析
{discriminations}
{num}、{title}
{description}- {usages}
{description}