音标：[ˈpʌŋktʃu:ˌeɪtɪd] ；

点断平衡说

词型变化：名词复数形式 : punctuated equilibriums

punctuated equilibrium的用法和样例：

例句

Gaps in the fossil record have led some paleontologists to propose the punctuated equilibrium theory of evolution.化石证据上的断代使古生物学家们提出间断平衡进化理论。
It has been argued that this anticipated the punctuated equilibrium hypothesis, but other scholars have preferred to emphasise Darwin's commitment to gradualism.有人认为这加快了间断平衡假说的发展，但其他学者倾向于强调这表明了达尔文对渐进论的信奉。

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发表于:2018-12-08 / 阅读(977) / 评论(0)

新概念英语第四册

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发表于:2018-12-08 / 阅读(759) / 评论(0)

新概念英语第四册

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发表于:2018-12-19 / 阅读(291) / 评论(0)

VOA双语新闻 2012年8月

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英语笔译

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发表于:2019-01-17 / 阅读(204) / 评论(0)

TED演讲教育篇

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发表于:2019-01-18 / 阅读(152) / 评论(0)

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For me they normally happen, these career crises, often, actually, on a Sunday evening, just as the sun is starting to set, 我经常对事业感到恐慌，周日下午，晚霞洒满天空， and the gap between my hopes for myself and the reality

发表于:2019-01-18 / 阅读(182) / 评论(0)

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发表于:2019-01-22 / 阅读(188) / 评论(0)

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发表于:2019-01-30 / 阅读(301) / 评论(0)

精美英文欣赏

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Grammar Girl here. Today's topic is apostrophes. A couple of weeks ago Legal Lad did a show about homeowners associations. What you didn't hear was that behind the scenes, Steve, one of our copy editors, debated whether to put an apostrophe in the wo

发表于:2019-01-30 / 阅读(316) / 评论(0)

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Many readers were surprised when President Obama took his wife, kids and mother-in-law along on his recent trip to Russia, Italy and Ghana, based on the e-mail I'm still receiving. Some thought it was too expensive, others too dangerous. It seems str

发表于:2019-02-02 / 阅读(256) / 评论(0)

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发表于:2019-02-08 / 阅读(200) / 评论(0)

英语新闻

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The plaza was beginning to empty. The press dissolved around them as people drifted back to their lives. 广场上的群众开始散去，人潮渐息，人们纷纷返回各自的生活。 But Arya's life was gone. Numb, she trailed along beside...

发表于:2019-02-17 / 阅读(235) / 评论(0)

冰与火之歌系列之《权力的游戏》

Report Outlines Unstable Global Food Situation

The worlds food system is dangerously out of balance, according to a prominent group of agriculture researchers. And they say food security problems will only grow as the population increases and the climate changes. In a new report ahead of this sum

发表于:2019-02-18 / 阅读(164) / 评论(0)

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absorbing curtain

acid carboy inclinator