| 释义 |
perennial/pəˈreniəl ||; pəˈrɛnɪəl/adj1. that happens often or that lasts for a long time 经常出现的；持久的: ◇a perennial problem 长期存在的问题 2. (used about plants) living for two years or more （指植物）存活两年或以上的，多年生的 perennialsee ⇨ always 2 pe·ren·ni·al /pə`rɛnɪəl; pəˈreniəl/adja perennial problem happens often or continues for a long time 反复不断的; 长久的，持久的:◇the perennial problem of poverty 长期存在的贫困问题 |