pollen grain 花粉粒
flower pollen 花粉
pollen count 花粉数量
airborne pollen 空气花粉
pollen allergy 花粉过敏
pollen season 花粉季节
1. The air was filled with pollens in spring.
春天空气中充满了花粉。
2. Pollens can cause allergies in sensitive people.
花粉会引起敏感人群过敏。
3. Bees collect pollens from flowers.
蜜蜂从花朵中采集花粉。
4. The doctor warned him about high levels of pollens.
医生提醒他花粉浓度很高。
A: Are there a lot of pollens in the air today?
A：今天空气中的花粉多吗？
B: Yes, the pollen count is very high.
B：是的，花粉指数很高。
1) 植物繁殖用的花粉颗粒集合
2) 引起季节性过敏的微小颗粒
3) 空气中传播的生物性物质
1. 花粉（植物产生的繁殖细胞）
e.g.Pollens are carried by the wind to other flowers.
花粉通过风传播到其他花朵。
noun
1. Plural form of pollen; tiny grains produced by plants for reproduction and fertilization.
Synonym: pollen grains