The estimate is the first to cover the entire United States instead of select populations according to location or age, said the study authors from Johns Hopkins University.

这次的估算还是第一次涵盖了全美而不是根据地区和年龄选择部分人口做调查，来自约翰霍普金斯大学的研究报告作者这样说道。

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The estimate is the first to cover the entire United States instead of select populations according to location or age, said the study authors from Johns Hopkins University.

这次的估算还是第一次涵盖了全美而不是根据地区和年龄选择部分人口做调查，来自约翰霍普金斯大学的研究报告作者这样说道。

youdao