A group of scientists is examining bees from more than 100 colonies across the country.
A group of scientists is examining bees from more than 100 colonies across the country.
一组科学家正在对全国100多个蜜蜂种群进行检查。
A group of scientists is examining bees from more than 100 colonies across the country.
一组科学家正在对全国100多个蜜蜂种群进行检查。