单词：cycads
(cycad 的复数) n. 铁树目裸子植物
plural of cycad
n. any tropical gymnosperm of the order Cycadales; having unbranched stems with a crown of fernlike leaves
n. any tropical gymnosperm of the order Cycadales; having unbranched stems with a crown of fernlike leaves
cycads的用法和样例：
例句
- Genus of small evergreen tropical and subtropocal American cycads.一种小的常绿热带和亚热带美洲苏铁。
- Cycads and ginkgo have motile sperm, unlike gnetophytes and conifers, which produce pollen.苏铁和银杏具活动精子可区别于买麻藤和松柏类，它们不产生花粉。