cavalry
词根词缀：
cavalcade n. 骑兵队伍
caval 马 + cade → 骑兵队伍
cavalry n. 骑兵
caval 马 + ry 集合名词 → 骑兵
cavalryman n. 骑兵
cavalry 骑兵 + man → 骑兵
数据来源：新东方英语词汇速记大全
相关例句：
In a modern army, cavalry regiments use armoured vehicles and ride horses only on special public occasions.
在现代化的军队中，骑兵团使用装甲车，只有在特殊的公共节庆场合才骑马。
The cavalry commander predicted that many Sioux would bite the dust if they attacked the fort.
骑兵指挥官预言，如果苏族人进兵要塞，他们中有很多人会被打死。
Well equipped heavy cavalry with plate armour and a lance.
意大利重骑兵是装备板甲和骑枪的重装骑兵。
Cavalry can now charge a Spearman army.
骑兵现在可对长矛部队冲锋了。
His famous "Ironside" cavalry and New Model Army defeated the king.
他著名的铁骑军和新模范军击败了国王。
The Dutch fleet, frozen in the Texel, surrendered a handful of cavalry without firing its guns.
荷兰舰队冻结在特塞尔岛，没有开火就交出了少数骑兵。