| [/pəˈrenɪəl; pəˋrɛnɪəl/] adj 用法:
1 lasting for a long time 长久的; 持久的:
a perennial subject of interest 永恒的主题. 用法:
2 constantly recurring 一再的; 反覆出现的:
aperennial problem 反覆出现的问题 *
perennial complaints一再的抱怨. 用法:
3 (of plants) living for more than two years （指植物）多年生的. perennial 2
n perennial plant 多年生植物:
hardy perennials, ie plants that can normally tolerate frost 耐寒的多年生植物. |