pollen

这朵花的花粉很多。

This flower has a lot of ___pollen.

春天来了，空气中飘满了花粉。

In spring, the air is full of ___pollen from flowers.

春天来了，空气中的花粉让很多人开始打喷嚏。

In spring, many people sneeze because of the ___pollen in the air.