deaths during a particular period above the usual, expected number of deaths under normal conditions, which can show the effect of something like a disease or harmful event

Not all excess deaths during the pandemic were directly caused by the virus. 在病疫大流行期间，并非所有超额死亡都是由病毒直接造成的。

A team at Harvard estimated nearly 4,700 excess deaths in Hurricane Maria's aftermath. 哈佛大学的一个团队估计，飓风玛丽亚过后，有近4700人超额死亡。