planets

简明释义

英[ˈplænɪts]美[ˈplænɪts]

n. [天]行星；星球（planet 的复数形式）

英英释义

单词用法

同义词

反义词

例句

1.Hence, the Jovian planets are often called giants.

因此，木星行星通常被称为巨行星。

2.One of the outer planets, Saturn, has a density of only 0.

土星是外行星之一，它的密度只有0。

3.They are aliens on other planets.

它们是其他星球上的外星人。

4.Of all the inner planets, only Mercury and Earth boast such a field.

在所有的内行星中，只有水星和地球拥有这样一个领域。

5.The planets revolve around the sun.

行星绕着太阳运转。

6.The picture shows six of the nine planets in the solar system.

这张图片展示太阳系9个行星中的6个行星。

7.It is the gravitational interaction with planets, right?

这是引力与行星的相互作用，对吧？

8.Scientists are looking for signs of life on distant planets.

科学家们正在寻找遥远行星上生命的迹象。

9.Some planets have rings made of ice and rock particles.

一些行星有由冰和岩石颗粒组成的环。

10.Astronomers study the orbits of different planets to understand their movements.

天文学家研究不同行星的轨道，以了解它们的运动。

11.Many children dream of traveling to other planets in the future.

许多孩子梦想将来能去其他的行星旅行。

12.The discovery of new planets outside our solar system has excited scientists.

在我们太阳系外发现新的行星让科学家们感到兴奋。

作文

The universe is a vast and mysterious place, full of wonders that captivate our imagination. Among these wonders are the celestial bodies we refer to as planets, or in Chinese, 行星. These planets are not just mere points of light in the night sky; they are complex worlds with their own unique characteristics and histories.There are eight recognized planets in our solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Each of these planets has its own distinct features. For instance, Mercury is the closest planet to the Sun and experiences extreme temperature fluctuations. In contrast, Venus is often called Earth's twin due to its similar size and composition, yet it has a thick atmosphere filled with carbon dioxide and sulfuric acid clouds, making it the hottest planet in our solar system.Earth, our home planet, is unique because it supports life. It has the right conditions, such as liquid water, an atmosphere rich in oxygen, and a suitable climate, allowing diverse ecosystems to thrive. Mars, on the other hand, is known as the Red Planet due to its iron oxide-rich surface. Scientists are particularly interested in Mars because there is evidence that it once had liquid water, raising the possibility that it may have harbored life in the past.Beyond the rocky planets close to the Sun, we find the gas giants: Jupiter and Saturn. Jupiter is the largest planet in our solar system, known for its Great Red Spot, a massive storm larger than Earth. Saturn is famous for its stunning ring system, which is made up of ice and rock particles. These gas giants are fascinating because they are composed mostly of hydrogen and helium, and their immense gravitational pull has allowed them to capture many moons, some of which are intriguing in their own right.Uranus and Neptune are the ice giants, with compositions that include water, ammonia, and methane. Uranus is unique because it rotates on its side, making its axial tilt the most extreme of any planet. Neptune, known for its striking blue color, has strong winds and storms, showcasing the dynamic nature of planets beyond the asteroid belt.In recent years, our understanding of planets has expanded dramatically with the discovery of exoplanets—行星 that exist outside our solar system. Thousands of these distant planets have been identified, many of which reside in the habitable zones of their stars, where conditions might be right for life. This has sparked a new field of research aimed at finding Earth-like planets and exploring their potential for habitability.Studying planets is not just about understanding their physical properties; it also helps us comprehend the origins of our own planet and the future of our solar system. By examining the atmospheres, surfaces, and potential for life on these planets, scientists can piece together the history of our cosmic neighborhood.In conclusion, planets are not only essential components of our solar system but also keys to unlocking the mysteries of the universe. Whether it's the rocky terrains of Mars or the swirling gases of Jupiter, each planet offers a glimpse into the complexities of celestial mechanics and the potential for life beyond Earth. As we continue to explore and learn more about these fascinating worlds, we deepen our understanding of our place in the cosmos and the possibilities that lie beyond our own planet.

宇宙是一个广阔而神秘的地方，充满了引人入胜的奇观。在这些奇观中，有我们称之为行星的天体。那些行星不仅仅是夜空中微弱的光点；它们是复杂的世界，各自具有独特的特征和历史。在我们的太阳系中，有八个被认可的行星：水星、金星、地球、火星、木星、土星、天王星和海王星。这些行星各有其独特的特征。例如，水星是离太阳最近的行星，经历极端的温度波动。相反，金星因其与地球相似的大小和成分而被称为地球的双胞胎，但它拥有厚厚的二氧化碳和硫酸云的气氛，使其成为太阳系中最热的行星。地球，我们的家园行星，之所以独特，是因为它支持生命。它具备适合生命存在的条件，如液态水、富含氧气的气氛和适宜的气候，允许多样的生态系统繁荣发展。另一方面，火星因其富含铁氧化物的表面而被称为红色行星。科学家对火星特别感兴趣，因为有证据表明它曾经有液态水，这引发了它过去可能孕育生命的猜想。在靠近太阳的岩石行星之外，我们发现了气体巨星：木星和土星。木星是太阳系中最大的行星，以其大红斑而闻名，这是一场比地球还大的巨大风暴。土星因其令人惊叹的环系而著称，环系由冰和岩石颗粒组成。这些气体巨星令人着迷，因为它们主要由氢和氦组成，巨大的引力使它们能够捕捉许多卫星，其中一些卫星本身也颇具吸引力。天王星和海王星是冰巨星，由水、氨和甲烷组成。天王星独特之处在于它侧身旋转，使其轴倾角成为所有行星中最极端的。海王星以其鲜艳的蓝色著称，拥有强烈的风和风暴，展示了小行星带之外的行星的动态特性。近年来，随着系外行星的发现，我们对行星的理解大大扩展——这些行星存在于我们的太阳系之外。数千个这样的遥远行星被识别出来，其中许多位于其恒星的可居住区内，条件可能适合生命。这引发了一个新的研究领域，旨在寻找类地行星并探索它们的潜在宜居性。研究行星不仅仅是了解它们的物理特性；它还有助于我们理解自己行星的起源和太阳系的未来。通过检查这些行星的气氛、表面和生命潜力，科学家可以拼凑出我们宇宙邻域的历史。总之，行星不仅是我们太阳系的重要组成部分，也是揭开宇宙奥秘的钥匙。无论是火星的岩石地形还是木星的旋转气体，每一颗行星都提供了对天体力学复杂性和地球之外生命可能性的洞察。随着我们继续探索和了解这些迷人的世界，我们加深了对宇宙中我们位置的理解，以及在我们自己的行星之外存在的可能性。