pollen可数吗

　　pollen例句分享

　　Seeds and pollen are spread by the wind.

　　种子和花粉是随风传播的。

　　Many people are allergic to airborne pollutants such as pollen.

　　许多人对空气传播的污染物过敏，比如花粉。

　　As the day goes on, the pollen dries up and becomes hard.

　　日子一天天过去，花粉干结成了硬块。