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单词

perennial

读音

pəˈreniəl

美式

英式

词根

无

释义

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 [ 复数 perennials ]

例句

What about perennial growers?

多年生植物种植者呢？

The perennial vegetation adjusts to the aridity by means of various avoidance mechanisms.

多年生植物会采用各种躲避机制以适应干旱。

We learned that the Botai were able to build large perennial villages, sometimes with hundreds of homes.

我们了解到博泰人能够建造大型的常年村庄，有时候村里有上百户人家。

强化记忆

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看视频学发音

Or, is it, perhaps, possible?Evolution has been a perennial topichere at the TED Conference,

And we can accomplish thisby putting in place deep-rooted perennial plants,putting back forests whenever possible,

partisan politics and entrenched bureaucracy, and we loveto complain about government. It's a perennial pastime,especially around election time, but

And trying some sustainable agriculturesuch as perennial wheatgrass, which has much longer rootsthan the six inches of a corn plant,

or resist emerging fungal pathogens,or even programming crops to be perennial rather than annualso you could double your crop yields each year.

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所在词典

GRE填空及阅读机经,剑桥雅思阅读真题4-15,托福TPO阅读真题,经济学人(The Economist),医学英语(The Language of Medicine)