双语例句原声例句
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他补充说他们在参加研究前没有人患老年痴呆症或有记忆问题。
He adds none had dementia or memory problems when they entered the study.
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参与者最初于1999年参加研究，之后随访了六年。
The participants were initially enrolled in 1999 and were followed for a period of six years.
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所有参加研究的女性包括自然绝经的女性以及卵巢切除后进入绝经期的女性。
It included both women who had gone through natural menopause and those who had gone into menopause after removal of ovaries.
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So when we talk about a cohort study, this means taking a group of people and following them over time.
所以当我们提到定群研究,就意味着,有一群人参加实验并需一直追踪下去
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they've been a part of cutting edge research that nobody else really knows about.
他们参加一些没有其他人知道的前沿研究。
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Marsden was essentially a UROP.
马斯登参加了大学生研究计划。
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