You know, with anything, healthcare experts think that the official tally undercounts the number of virus deaths and cases in Brazil.

你知道，无论如何，医疗保健专家认为官方数据并没有将巴西的病毒死亡人数和病例数统计到位。

Let's look at undercounts in the 2010 census.

让我们看看 2010 年人口普查中的少计情况。

Experts say the survey likely undercounts those living in the country illegally.

专家表示，该调查可能低估了非法居住在该国的人数。