柯林斯词典cactus /ˈkæktəs/ (cacti/ˈkæktaɪ/) 1. N-COUNT A cactus is a thick, fleshy plant that grows in many hot, dry parts of the world. Cacti have no leaves and many of them are covered in prickles. 仙人掌屬植物 返回 cactus剑桥词典any of many types of desert plant usually with sharp spines and thick stems for storing water 仙人掌 返回 cactus