这种所谓的前瞻性研究可记录到实际的使用手机时间，比凭记忆估计得到的使用手机时间结果更准确。

This kind of study, called a prospective study, is considered more accurate because it does not require people to remember their cell phone use later but tracks it in real time.

youdao

这种所谓的前瞻性研究可记录到实际的使用手机时间，比凭记忆估计得到的使用手机时间结果更准确。

This kind of study, called a prospective study, is considered more accurate because it does not require people to remember their cell phone use later but tracks it in real time.

youdao