translation.en: Overwintering success is hard, and that's when most of the colonies are lost, and we found that in the cities, bees are surviving better than they are in the country.
translation.zh: 成功的度过冬天很困难 大多数的蜂群都是这时候流失 我们在城市发现了它们，蜜蜂可以比在乡村 更好的存活下来。