生活英语|floating fluffy 飞絮

The Beijing authorities have vowed^{1 to take action on the floating fluffy2 tree seeds that irritate capital residents every spring, ending the problem by 2020.}

北京有关部门表示要采取行动治理每年春季都困扰首都居民的飞絮，到2020年彻底解决该问题。

Beijing has about 2 million female poplar and willow^{3 trees which produce catkins to spread their seeds every spring, the Beijing Municipal Bureau of Landscape and Forestry4 was quoted as saying on Wednesday by the Beijing Morning Post.}

据《北京晨报》援引北京园林局的信息显示，现在，北京约有200万株杨柳树雌株，每年春天都产生很多飞絮。

Catkin特指那些絮，fluffy catkins就是漫天飞舞的杨柳飞絮，产生飞絮的是杨柳树雌株（female willow and poplar trees）。