perennial
                                        英 [pə'renɪəl]
美 [pə'rɛnɪəl]
                                        
- adj. 多年生的;常年的;四季不断的;常在的;反复的
- n. 多年生植物
                             IELTS GRE TOEFL                         
                                        
                 
                                
                             
                                                
            perennial 多年的,长久的per-,整个的,-enn,年,词源同annual.原义为终年的,终年不凋的,后引申词义多年的,长久的。
 
                                    
            - perennial (adj.)
- 1640s, "evergreen," formed in English from Latin perennis "lasting through the year (or years)," from per- "through" (see per) + annus "year" (see annual). Botanical sense of "Remaining alive through a number of years" is attested from 1670s; figurative meaning of "enduring, permanent" is from 1750. Related: Perennially. For vowel change, see biennial. The noun meaning "a perennial plant" is from 1763.
                 - 1. A perennial is a plant that lives indefinitely. 
- 多年生植物是指能存活很多年的植物。
来自柯林斯例句
 
- 2. the perennial problem of water shortage 
- 缺水这个老问题
来自《权威词典》
 
- 3. I wonder at her perennial youthfulness. 
- 我对她青春常驻感到惊讶.
来自《简明英汉词典》
 
- 4. There's a perennial shortage of teachers with science qualifications. 
- 有理科教学资格的老师一直都很短缺。
来自辞典例句
 
- 5. The novel's central theme is the perennial conflict between men and women. 
- 小说的主题是男人和女人之间永无休止的冲突。
来自辞典例句