#每日学单词# Canna（或canna lily）/ˈkanə/ 名词：A tropical American plant with bright flowers and ornamental broad, flat leaves. 美洲热带植物，开明亮的花，叶宽而平。例句：Don't allow stored dahlias and cannas to get too dry or they will be difficult to start into growth again in the spring. 源自现代拉丁语“cane，reed”。