velocity
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词义分析:"Velocity"是一个名词,指的是物体的速度以及其方向,通常在物理学中使用。
例句:
词根词缀分析:"Velocity"源自拉丁词"velocitas",由词根"velox"演变而来,意味着"quick, rapid"。其后缀"-ity"用于将形容词转化成名词。
历史与文化背景:"Velocity"这个词在14世纪从拉丁语引入英语,主要用于描述物体的速度和方向,特别是在物理学和工程学领域。
单词变形与搭配:
- 复数形式:velocities
- 形容词形式:high velocity, average velocity
- 固定搭配:velocity of light (光速)
记忆辅助:你可以将"velocity"与"velociraptor"这个单词关联起来。"Velociraptor"是一种恐龙的名字,"veloci-"在此表示"快速的",而"-raptor"意味着"捕食者"。所以,你可以想象"Velociraptor"快速移动来帮助你记住"velocity"一词。
小故事:"Harry was always impressed by the velocity of hummingbirds. They moved so quickly, their wings were a blur."(哈利总是被蜂鸟的速度所震撼。它们移动得如此之快,翅膀已经模糊不见了。)
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