comet

简明释义

英[ˈkɒmɪt]美[ˈkɑːmɪt]

n. 彗星

【名】 （Comet）（法）科梅（人名）

复 数 c o m e t s

英英释义

单词用法

同义词

反义词

例句

1.That's why comet tails always point away from the sun.

这就是为什么彗星总是面向太阳拖着尾巴。

2.I can hardly wait to see the new comet.

我迫不及待地想看到那颗新的彗星。

3.Comet Daily provides information about Comet techniques.

Comet日报主要报道Comet的相关技术信息。

4.Given enough time, the comet-like planet could theoretically evaporate away completely, but it would take about a trillion years.

只要有足够时间，跟彗星一样的行星最终会完全蒸发掉，但那大约需要一万亿年。

5.The trip from Earth by "Philae" had taken ten years! The scientists had no idea what the surface of the comet would be like.

“菲莱”号从地球出发的旅行已经花了十年的时间！科学家们不知道彗星的表面会是什么样子。

6.The orbit of this comet intersects the orbit of the Earth.

这颗彗星的轨道和地球的轨道相交。

7.If so, life may have started in a comet.

如果是这样的话，生命也许是从彗星中开始的。

8.The comet is going to come back in 2061 and we are all going to be able to see it. Well, our offspring are, anyway.

这颗彗星将于2061年返回，到时我们都可以看到它。哦，无论如何，我们子孙是可以看到的。

9.The comet passed close to Earth, providing a rare opportunity for astronomers to study it.

这颗彗星靠近地球，为天文学家提供了一个难得的研究机会。

10.Scientists are excited about the upcoming appearance of a new comet in our solar system.

科学家们对即将在我们太阳系出现的新彗星感到兴奋。

11.The bright tail of the comet dazzled everyone watching the night sky.

那颗耀眼尾巴的彗星让所有观看夜空的人都惊叹不已。

12.In ancient times, people believed that a comet was a sign from the gods.

在古代，人们相信彗星是神灵的迹象。

13.A famous comet named Halley's can be seen from Earth every 76 years.

一颗著名的彗星，哈雷彗星，每76年可在地球上看到一次。

作文

Throughout history, the appearance of a comet (彗星) in the night sky has captured the imagination of humanity. These celestial objects, composed of ice, dust, and rocky materials, travel through space and often display spectacular tails when they approach the sun. The study of comets (彗星) not only fascinates astronomers but also provides valuable insights into the early solar system's formation. One of the most famous comets (彗星) is Halley's Comet (哈雷彗星), which can be seen from Earth approximately every 76 years. Its last appearance was in 1986, and it is expected to return in 2061. The anticipation surrounding Halley's Comet (哈雷彗星) has led to numerous studies and observations, making it a significant part of both scientific research and popular culture. Many people remember the excitement of seeing this comet (彗星) streak across the sky, a reminder of the wonders that exist beyond our planet. The physical characteristics of comets (彗星) are intriguing. When a comet (彗星) approaches the sun, the heat causes its icy nucleus to vaporize, creating a glowing coma and a tail that can stretch millions of kilometers. This phenomenon occurs because the solar wind pushes the gas and dust away from the comet (彗星), forming a beautiful and often colorful display. The tails of comets (彗星) always point away from the sun, regardless of the direction in which the comet (彗星) is traveling. This unique behavior is a testament to the complex interactions between solar radiation and the materials that make up these fascinating objects. In addition to their aesthetic appeal, comets (彗星) hold clues to the origins of our solar system. They are considered to be remnants from the time when planets were forming, containing primitive materials that have changed little over billions of years. By studying the composition of comets (彗星), scientists hope to learn more about the conditions present in the early solar system and how they influenced the development of planetary bodies, including Earth. For instance, some researchers suggest that comets (彗星) may have delivered water and organic molecules to our planet, playing a crucial role in the emergence of life. The exploration of comets (彗星) has advanced significantly in recent years, thanks to missions like Rosetta, which successfully landed a probe on the comet (彗星) 67P/Churyumov-Gerasimenko in 2014. This landmark achievement allowed scientists to gather data directly from a comet (彗星), providing unprecedented insights into its structure and composition. The findings from such missions continue to deepen our understanding of these celestial wanderers and their significance in the broader context of the universe. In conclusion, comets (彗星) are not just beautiful objects to observe in the night sky; they are key to unlocking the mysteries of our solar system's past. Their unpredictable appearances remind us of the dynamic nature of the cosmos and inspire future generations to look up at the stars with wonder. As we continue to explore and study comets (彗星), we embrace the possibility of discovering more about our origins and the fundamental processes that govern the universe.

在历史上，夜空中出现的彗星（comet）一直吸引着人类的想象。这些天体由冰、尘埃和岩石材料组成，在太空中旅行，通常在接近太阳时显示出壮观的尾巴。对彗星（comet）的研究不仅让天文学家着迷，还为我们提供了有关早期太阳系形成的重要见解。最著名的彗星（comet）之一是哈雷彗星（Halley's Comet），它大约每76年就能在地球上看到一次。它的最后一次出现是在1986年，预计将在2061年再次出现。围绕哈雷彗星（Halley's Comet）的期待导致了无数的研究和观察，使其成为科学研究和流行文化的重要组成部分。许多人记得看到这颗彗星（comet）划过天空的兴奋，提醒着我们存在于地球之外的奇迹。彗星（comet）的物理特征令人着迷。当一颗彗星（comet）接近太阳时，热量使其冰冻的核蒸发，形成一个发光的晕和可以延伸数百万公里的尾巴。这个现象发生是因为太阳风将气体和尘埃从彗星（comet）推开，形成美丽而且通常色彩斑斓的展示。彗星（comet）的尾巴始终指向远离太阳的方向，无论彗星（comet）朝哪个方向移动。这种独特的行为证明了太阳辐射与构成这些迷人天体的材料之间复杂的相互作用。除了审美吸引力之外，彗星（comet）还蕴含着关于我们太阳系起源的线索。它们被认为是行星形成时期的残余，包含了数十亿年来变化不大的原始材料。通过研究彗星（comet）的成分，科学家希望更多地了解早期太阳系的条件，以及这些条件如何影响行星体的发展，包括地球。例如，一些研究人员建议，彗星（comet）可能将水和有机分子送到我们的星球，对生命的出现发挥了关键作用。近年来，对彗星（comet）的探索显著进展，得益于像罗塞塔这样的任务，该任务在2014年成功地将探测器着陆在彗星（comet）67P/Churyumov-Gerasimenko上。这一里程碑式的成就使科学家能够直接从一颗彗星（comet）收集数据，提供了前所未有的关于其结构和成分的见解。来自此类任务的发现继续加深我们对这些天体的理解，以及它们在更广泛宇宙背景中的重要性。总之，彗星（comet）不仅仅是夜空中可观察的美丽物体；它们是揭示我们太阳系过去奥秘的关键。它们不可预测的出现提醒我们宇宙的动态本质，并激励未来几代人以惊叹的目光仰望星空。随着我们继续探索和研究彗星（comet），我们拥抱发现更多关于我们起源以及支配宇宙的基本过程的可能性。