The average population of such a hive is 80,000 bees.

一个蜂巢里平均有8万只蜜蜂。

The suburban commuter workforce increases a city's average daytime population by 19%, according to research from the Brookings Institution.

根据布鲁金斯学会的研究，郊区通勤劳动力使城市白天的平均人口增加了19%。

That means, in the case of an outbreak, a country with an older average population may be more vulnerable than it otherwise would be.

这意味着，在疫情爆发的情况下，一个平均人口年龄较大的国家可能比其他国家更容易受到影响。

In fact, Wyoming's average population density of just 2.3 people per square kilometer ranks it as one of the most completely empty locations anywhere on the planet.

事实上，怀俄明州的平均人口密度仅为每平方公里 2.3 人，是地球上最空旷的地方之一。

And as a result, the average population density throughout it is only about eight people per square kilometer, about on a par with the US State of New Mexico.

因此，整个地区的平均人口密度仅为每平方公里 8 人左右，大约与美国新墨西哥州相当。

This is what makes the Big Island an overall very rural place in comparison with an average population density of only about 50 people per square mile which is about the same as the state of Maine.

因此大岛整体上是一处乡村气息非常浓厚的地方，相比之下，平均人口密度约为每平方英里 50 人，与缅因州的人口密度差不多。