If you have pollen allergies, you should either avoid flowering plants or snip off the flower buds as soon as they appear.(如果您对花粉过敏，您应该避免开花植物，或者在它们出现后，立即剪掉它们。)
Many people are allergic to airborne pollutants such as pollen.(许多人对空气中花粉之类的污染物质过敏。)
Another problematic method is to reconstruct former climates on the basis of pollen profiles.(另一种有问题的方法是根据花粉谱重建以前的气候。)
A MERV rating tells you how well the filter can remove pollen and mold from the air as it passes through.(MERV等级可以让你知道当花粉和霉菌在空气中传播时，过滤器将如何将之过滤。)
A midge gathers pollen from a cacao flower by sticking its head inside a "petal pouch" that contains both pollen and a sticky nectar reward.(一只摇蚊把它的头伸进一个“花瓣囊”里，收集可可花的花粉，“花瓣囊”里既有花粉，也有粘稠的花蜜。)
The pollen viability of Miscanthus sinensis was determined by in vitro pollen germination method.(采用离体花粉萌发法测定了芒豆的花粉活力。)
Then there is fossilized pollen, from low shrubs and grasses that once grew in the Sahara.(还有一些石化的花粉，来自于曾经生长在撒哈拉的小灌木丛和草丛。)
When, in experiments, these caterpillars were fed milkweed leaves dusted with pollen from modified maize plants, they died.(在实验中，这些毛毛虫被喂食沾有转基因玉米花粉的马利筋叶子，然后它们死亡了。)
And pollen can blow for miles.(并且花粉可被风吹行数英里。)
Milk was used as material for fermentation and pollen polysaccharide was added into to produce yoghourt.(以牛乳为原料进行发酵，并添加花粉多糖研制多糖酸奶。)
