这些问题的最初的目的是帮助研究者在心脏病研究的持续过程中还可以和参与者保持联系，甚至是他们离开弗雷明汉后也能保持联系。

The original purpose of such questions was to help the researchers behind the heart-disease project stay in touch with participants even when they moved out of Framingham.

youdao

这些问题的最初的目的是帮助研究者在心脏病研究的持续过程中还可以和参与者保持联系，甚至是他们离开弗雷明汉后也能保持联系。

The original purpose of such questions was to help the researchers behind the heart-disease project stay in touch with participants even when they moved out of Framingham.

youdao