常见例句Genus of small evergreen tropical and subtropocal American cycads.一種小的常綠熱帶和亞熱帶美洲囌鉄。Cycads and ginkgo have motile sperm, unlike gnetophytes and conifers, which produce pollen.囌鉄和銀杏具活動精子可區別於買麻藤和松柏類，它們不産生花粉。 返回 cycads