n.花粉

原形：pollen复数：pollens

Pollen grains are tiny, usually yellow or green particles produced by flowering plants for reproduction.
花粉粒是开花植物为了繁殖产生的微小黄色或绿色颗粒。
Allergies to pollen are a common cause of seasonal hay fever in many parts of the world.
对花粉的过敏在全球许多地方是季节性花粉热的常见原因。
The wind-blown pollen can travel long distances and affect people with asthma or allergies.
风携带的花粉能长途飘散，影响哮喘或过敏患者。
Pollen analysis is a method used by archeologists to date ancient wooden artifacts.
通过分析木头上的花粉，考古学家可以确定古代木质文物的年代。
In spring, many people suffer from allergies due to an increase in airborne pollen levels.
春天，随着空气中的花粉含量增加，许多人会遭受过敏困扰。
Beekeepers carefully collect pollen from flowers to use as a nutritious ingredient in honey production.
养蜂人会精心从花朵中收集花粉，用作蜂蜜制作中的营养成分。
Some plants have evolved to release their pollen only at night to avoid competition with other plants.
有些植物进化出只在夜间释放花粉的方式，以避免与其他植物竞争。
A pollen count is a measure of how much pollen is present in the air, which can help predict allergy season.
花粉计数是衡量空气中花粉含量的指标，有助于预测过敏季节。
The pollen on a person's clothes or car can indicate where they have been, especially in allergy-prone areas.
一个人衣服或汽车上的花粉可以显示他们去过的地方，尤其是在过敏高发地区。
Farmers monitor pollen levels to ensure optimal pollination for their crops, such as apples and almonds.
农民会监控花粉水平，以确保农作物如苹果和杏仁的最佳授粉。