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1.Stamen is in the middle of a flower and may produce pollen .
雄蕊长在花的中央，能产生花粉。收藏指正
2.any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma.
北美洲任何构成豚草属的植物，有变应原的花粉，治疗花粉热和气喘。收藏指正
3.Each lobe contains two pollen sacs that produce very large quantities of small pollen grains.
左右两侧花粉囊之间是薄壁细胞构成的药隔，药隔中的维管束与花丝维管束相连。收藏指正
4.The researchers also are studying the pollen, honey, and wax that the bees produce.
研究人员也同时在研究花粉、蜂蜜以及由蜜蜂产生的蜡。收藏指正
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