ragweed pollen

常见例句

It's enough to make you grab a tissue: Minneapolis has tacked 16 days to the ragweed pollen season since 1995;
下面的数据将使你忍不住抓起一张纸巾：明尼阿波利斯市自1995年以来的花粉季增加了16天；
It's enough to make you grab a tissue: Minneapolis has tacked 16 days to the ragweed pollen season since 1995; LaCrosse, Wisc.
下面的数据将使你忍不住抓起一张纸巾：明尼阿波利斯市自1995年以来的花粉季增加了16天；
Conclusion Significant difference exists between the extract of artemisia pollen and ragweed pollen, with the former being more complicated.
结论艾蒿花粉与豚草花粉提取液蛋白组分差异较大，前者更复杂；

So yes, there will be more ragweed pollen, and somewhat more pollen from all plant species.
FORBES: Global Warmists Allergic To The Truth During Pollen Season
Such traits -- whether of viruses, ragweed pollen or cancer -- are called antigens.
FORBES: In search of antigens
Dr Epstein offers a novel twist: he thinks that rising carbon dioxide concentrations may be promoting the growth of ragweed, pollen and fungus.
ECONOMIST: Climate change