Birch trees release their pollen between March and May, and hay fever sufferers are likely to experience the worst symptoms during April.

桦树在三月到五月之间释放花粉，因此花粉症患者在四月份可能出现最严重的症状。

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The different pollination mechanisms require very specific foraging patterns to deposit and release pollen.

不同的传粉机制要求某一特定的取食式样储藏和释放花粉。

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In this study, a Pulverisette planetary ball mill was used for the ultrafine grinding of camellia pollen in attempt to achieve the full release of intracellular nutrients.

为使茶花粉孢子内营养物质能够得到充分释放，采用行星球磨机对茶花粉进行了超微化破壁试验研究。

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Her asthma has been asymptomatic for years, but she still starts sounding like a "bad Nicolas Cage imitation" every March, when the oak trees she's allergic to release their pollen.

CNN: Finding relief as spring allergies rage on

This will release even more pollen into the air.

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