convex - 掌握这个单词
通过我们的五步学习法掌握这个单词,用英语来学习英语
通过我们的五步学习法掌握这个单词,用英语来学习英语
例句是你认识词义的开始,不急着背诵,先感受它在句子中的用法。
(con- + vex) ; 来自拉丁语'convexus'(拱形,拱顶)→ 古法语'convexe' → 英语。想象一个气球;当你给它充气时,表面变得凸起,象征着成长和积极性。
注一:这些释义和词源并非传统字典中的标准定义,而是为了帮助记忆和理解单词的实际应用而提供的扩展解释。通过这些背景信息,我们力求让单词更加生动、易于理解,并帮助你记住它们在实际生活中的含义。
注二:LexiTalk 在设计学习流程时,遵循语言学中的“可理解输入”原则。当学习者接触略高于自己水平但能从语境中理解的内容时,大脑会自然吸收语言。这就是为什么我们让每个单词都出现在真实语境中,通过例句和联想帮助你理解并灵活使用。
查看 FAQ:什么是可理解输入?凸 describes a surface that curves outward, such as the outer surface of a sphere or a balloon. In geometry, a convex shape has the property that any line segment joining two points inside the shape lies entirely within the shape. The word is also used figuratively: something convex can be advantageous or favorable, expanding opportunities rather than limiting them. Its etymology comes from Latin convexus, via Old French convexe, into English. Picture a balloon inflated smoothly to remember the sense: space opens outward and benefits grow. The opposite is concave, which curves inward.
把 convex 想成外凸、向外扩张的形象,常联想到气球、成长与开放。学习者容易把 convex 和 concave 混淆,或以为所有曲面都是凸的。
What is the definition of 'convex'?
Which sentence uses 'convex' correctly?
Which word is most similar to 'convex'?
What is the opposite of 'convex'?
Can you think of a real-life context where something is convex?
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