小站备考
托福
托福词汇

boundary

  • 单词助记
  • 考点解读
  • 单词详解

扫码背更多单词

4周搞定2000+托福核心词

单词助记
加入生词本
鼠标悬停查看成分解释
bound ary
边界

moribund = mori(死) + bound(边界) = 死的边界→濒死的

+ 场所

sanctary = sanct(神圣) + ary(场所) = 圣堂,避难所

libraryian = libr(书) + ary(场所) + ian(某种人) = 管理书的人→图书馆管理员

范围,界限

[ˈbaʊndəri]
考点解读
  • 托福
  • 雅思
  • TPO词频:30 核心词

    boundary

    常考释义

    • n.边界
    变形词
    • 复数 boundaries
    托福常考例句

    There are no detectable boundaries between salt and water.

    盐和水之间没有可检测到的界限。

    来源于:听力TPO45 L3
单词详解
  • 英汉双解
  • 同反义词
    • n. 分界线;边界

      展开
      简明例句

      The Bow Brook, which forms the western boundary of the wood, is very long.

      构成树林西部边界的鲍溪很长。

      Drug traffickers operate across national boundaries.

      毒贩进行跨国贩毒活动。

      展开更多
      情景例句

      We don't go outside the boundary, Miss Lucy.

      我们是不能越界的,露茜小姐。

      来自《别让我走》

      图片源自网络

      展开更多
      托福考试例句

      However, other reliable evidence suggests that the deposition of the boundary clay could not have taken one million years.

      然而其他可靠的证据则表明沉积这层粘土不可能花费了一百万年。

      来源于:阅读TPO8 P2

      By measuring how many of these meteorites fall to Earth over a given period of time, scientists can estimate how long it might have taken to deposit the observed amount of Ir in the boundary clay.

      通过确定在一段给定时间内掉落在地球上的这种陨石的数量,科学家们就可以确定沉积隔层粘土的形成时间。

      来源于:阅读TPO8 P2

      A search of sedimentary deposits that span the boundary between the Cretaceous and Tertiary periods shows that there is a dramatic increase in the abundance of iridium briefly and precisely at this boundary.

      白垩纪时期与第三纪时期交替之间的沉积物的研究显示:在这两个时期的交替时期,铱元素的含量急剧增加。

      来源于:阅读TPO15 P2

      Uh, they were used to outline figures to show boundaries, just like you might use solid line in a pencil drawing.

      它们被用作各种素材的轮廓线,就像你们在画铅笔画时外围的实心线。

      来源于:听力TPO16 L6

      How can volcanic activity occur so far from a plate boundary?

      为什么火山活动发生在离板块边缘这么远的地方呢?

      来源于:阅读TPO27 P2

      It is at the boundaries between plates that most of Earth’s volcanism and earthquake activity occur.

      板块边界是地球上的火山和地震的高发地。

      来源于:阅读TPO27 P2

      The water table is the underground boundary below which all the cracks and pores are filled with water.

      地下水位指地层岩石裂缝和孔隙充满水的边界。

      来源于:阅读TPO28 P1

      In the following centuries, increasingly sophisticated waterpower mills were built throughout the Roman Empire and beyond its boundaries in the Middle East and northern Europe.

      后来的几个世纪里,更加先进的水磨在整个罗马帝国及其边界以外的中东和北欧各地兴建起来。

      来源于:阅读TPO29 P3

      Because eastern plows could not penetrate the densely tangled roots of prairie grass, the earliest settlers erected farms along the boundary separating the forest from the prairie.

      因为东部的犁进不了浓密的纠结的草原牧草的根须中,最早的定居者就在森林和草原的边缘建立了农场。

      来源于:阅读TPO33 P2

      Therefore, Alvarez and his colleagues concluded that it was likely that the iridium in sedimentary rocks deposited at the K-T boundary had originated in a giant meteorite or asteroid.

      因此,阿尔瓦雷茨和同事推测在K-T边界沉积岩沉淀的铱元素来自于巨型陨星或小行星。

      来源于:阅读TPO33 P3

      The appearance of these sedentary societies had a major impact on the social organizations, religious beliefs, and way of life of the peoples living within their boundaries.

      这些定居社会的出现对社会组织、宗教信仰和住在界定范围内的人们的生活方式都造成了巨大的影响。

      来源于:阅读TPO33 P1

      Additionally, in many species the tolerance boundaries are flexible and can change as a result of acclimatization (long-term exposure to particular conditions).

      此外,有许多物种的容忍范围是多变的,可以为了适应环境而变化(长期暴露于特定的条件)。

      来源于:阅读TPO40 P3

      The Hawaiian Islands, for example, are thousands of kilometers away from any plate boundary, and yet you have vast amounts of magma.

      例如,夏威夷群岛,距离任何板块边界都有数千公里的距离,但有大量的岩浆。

      来源于:听力TPO48 L3

      It brought back mud laced with worms, and starfish that dad entangled themselves in the line at depths well below the supposed boundary of the azoic zone.

      这个工具带上来含有虫子的海泥,还捞上来缠在工具上的海星。它们被打捞上来的深度已经在无生物区的划分界线之下了。

      来源于:阅读TPO36 P2
      展开更多
    • n. (学科或活动的)范围,界限

      展开
      简明例句

      The boundaries between history and storytelling are always being blurred and muddled.

      历史和说书的界线一向是模糊不清的。

      展开更多
      托福考试例句

      There are no detectable boundaries between salt and water.

      盐和水之间没有可检测到的界限。

      来源于:听力TPO45 L5

      The boundaries are detectable.

      物质间的界限是可检测的。

      来源于:听力TPO45 L5

      You can see the boundary between them and in fact, they are mechanically separable.

      你可以看到它们之间的界限,事实上,它们是机械分离的。

      来源于:听力TPO45 L5

      And you can't perceive any boundary between the two any longer.

      然后你不再会察觉到有两种物质。

      来源于:听力TPO45 L5
      展开更多
    • n. 球场边界线【板】

      展开
      简明例句

      The ball was caught by a fielder standing just inside the boundary.

      那个球被正站在边界内的守场员接住了。

      展开更多
    • n. 使球超过边界线的一击【板】

    • n. 击球超过边界线的得分【板】

  • 同义词

    n.边界,国境; 范围,界限,区域;

以上图片仅供学习交流使用,版权归原作者所有,如有侵权,请与我方联系

小站教育托福/雅思备考官方指南

托福/雅思备考完全攻略,小站备考平台为广大托福雅思备考考生提供完整托福TPO/雅思ielts在线模拟考试测评,包括:托福/雅思精听精读在线专项练习,托福/雅思三个月备考计划,90天备考策略,托福/雅思在线公开课视频学习以及托福/雅思名师考点答题技巧解析,助您快速提高托福/雅思成绩。 更多 >

© 2011-2019 ZHAN.com All Rights Reserved. 沪ICP备15003744号-3

沪公网安备31010602002658号