网友回答：
can provide a more complete picture of the burden of covid-19，excess deaths provided an estimate of the full covid-19 burden and indicated that official tallies likely undercounted deaths due to the virus. the mortality burden and the completeness of the
温馨提醒：随时光变迁，文中所陈述观点；准确性、难免有所变动，因此文中观点仅供参考。
