V2EX comet

Comet

定义 Definition

comet(彗星):绕太阳运行的天体,主要由冰、尘埃和岩石组成;当接近太阳时受热升华,会形成明亮的“彗发”和常见的尾巴(彗尾)。

发音 Pronunciation

/kmt/

例句 Examples

A comet appeared in the night sky.
一颗彗星出现在夜空中。

Scientists tracked the comet as it swung past the Sun, leaving a long, glowing tail behind it.
科学家追踪这颗彗星掠过太阳的过程,它身后拖着一条长长的发光彗尾。

词源 Etymology

comet 源自拉丁语 comēta,再往上来自希腊语 komētēs,意为“长发的人”,用来形容彗星明亮的彗发和尾巴像“头发”一样飘散的样子。

相关词 Related Words

文学作品中的用例 Literary Works

  • Mark Twain, Following the Equator:提到哈雷彗星(Halley’s Comet)及其引发的公众关注与想象。
  • Edmund Halley 相关科学著述与记载(常被引用于科普与文学文本中):以“哈雷彗星”的周期性回归为背景,彗星作为象征与时代标记频繁出现。
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