词汇 | perennial |
释义 | perennial adjective uk /pəˈren.i.əl/ us /pəˈren.i.əl/ lasting a very long time, or happening repeatedly or all the time: 长期存在的;常年的;不断发生的;反复的 The film "White Christmas" is a perennial favourite.《白色圣诞》是一部经久不衰、深受欢迎的影片。 We face the perennial problem of not having enough money.我们长期面临资金不足的问题。 Synonyms recurrent(REPEATED) repeated Compare annualadjective biennialadjective Continuous & permanent abiding abidingly ad infinitum around-the-clock be here to stayidiom immanence immanent immanently imperishable on the bounceidiom on the spinidiom on the trotidiom permanence permanency unrelentingly unrelieved unrelievedly unremitting unremittingly You can also find related words, phrases, and synonyms in the topics: Lasting for a long time Related wordperennially perennial noun[ C ] uk /pəˈren.i.əl/ us /pəˈren.i.əl/ a plant that lives for several years: 多年生植物 Roses and geraniums are perennials, flowering year after year.玫瑰和天竺葵是多年生植物,年复一年地开花。 Compare annualnoun(PLANT) Types of plant acanthus air plant amaranth Andromeda angiosperm early emergent evergreen fiddlehead grower moss mossy mugwort mustard non-hardy spleenwort starter plug succulent sundew tenderness perennial | American Dictionaryperennial adjective us/pəˈren·i·əl/ perennialadjective (TIME)lasting a long time, or happening repeatedly or all the time: Each year, the nation’s marketers try to answer the perennial question, What do consumers really want? perennial noun[ C ] us/pəˈren·i·əl/ perennialnoun[C] (PLANT)a plant that lives for more than two years Examples of perennialperennial The plants are tough perennials, less than a metre high. While it may be conducive to bean growth, deep hoeing may be detrimental to bananas or other perennials associated with the trees. Herbaceous perennials with type 1 seed banks should be reintroduced by sowing. In other words, the pressure of disease has not led to the downfall of perennials. If perennials can fix an adequate amount of carbon to make them viable crops, the question becomes one of harvest index rather than trade-off. However, there is a difference in the response for annuals and perennials crops. The project also entails helping local people near the camps to plant perennials such as coffee trees and oil palms. In the dry season the green perennials were tested. Over the same time period, income from perennials remained fairly constant, while income from annual crops fell. Coffee is indicative; policy distortions have affected other perennials in similar ways. Furthermore, in an agricultural setting, the risk of poor establishment-frequently an issue with annual crops-is avoided in the years when perennials are regrowing. The framework also explains how high-seed-yielding herbaceous perennials could be developed through selection, despite their rarity in natural ecosystems. Nutrient resorption from senescing leaves of perennials: are there general patterns? The accumulation of detrimental pathogens in plant rhizospheres can affect both annuals and perennials in natural and agroecosystems. In interpreting this result, one should keep in mind that the area for annual crops is far larger than for perennials. See all examples of perennial These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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