crater

简明释义

英[ˈkreɪtə(r)]美[ˈkreɪtər]

n. （撞击或爆炸形成的）坑，弹坑；火山口；穴，洞；（古希腊用的）调酒碗

v. 在（地面或行星）上形成坑；<美，非正式>失败，突然落下

复 数 c r a t e r s

第 三 人 称 单 数 c r a t e r s

现 在 分 词 c r a t e r i n g

过 去 式 c r a t e r e d

过 去 分 词 c r a t e r e d

英英释义

单词用法

同义词

反义词

例句

1.The crater, now deeply buried in sediment, was originally about 200 kilometers in diameter.

这个陨石坑现在深埋在沉积物中，最初直径约200公里。

2.If you go further, you'll see the second crater.

如果你继续往前走就会看到第二个火山口。

3.We could do this in theory by studying an enormous impact crater, known as the South Pole-Aitken Basin.

理论上，我们可以通过研究一个名为南极-艾特肯盆地的巨大陨石坑来做到这一点。

4.Barringer crater is 1.2km in diameter.

巴林杰陨石坑的直径有1.2千米。

5.That makes it the biggest known crater in our solar system and it may well be the oldest.

这使它成为太阳系中已知最大的陨石坑，也可能是最古老的陨石坑。

6.Lava bubbled a few feet below the lip of the crater.

熔岩在火山口下几英尺处沸腾。

7.The remarkable photograph of a 'moonbow' was taken by Wally Pacholka as he looked over the Haleakala crater on Maui Island in Hawaii.

这张引人注目的‘月虹'照片是由WallyPacholka在游览参观夏威夷毛伊岛哈雷阿卡拉火山口时拍摄的。

8.We hiked to the edge of the volcanic crater to take pictures.

我们徒步到火山火口的边缘拍照。

9.A small lake has formed in the center of the crater.

在这个陨石坑的中心形成了一个小湖。

10.The astronauts landed near a large lunar crater.

宇航员降落在一个巨大的月球陨石坑附近。

11.The crater left by the meteorite was several meters deep.

陨石撞击留下的陨石坑深达几米。

12.The scientists studied the crater to understand the impact's effects.

科学家们研究这个陨石坑以了解撞击的影响。

作文

The Earth is a planet full of wonders, and one of the most fascinating features it possesses is the crater (火山口). A crater is a bowl-shaped depression formed by volcanic activity or meteorite impacts. These geological formations can tell us a lot about the history of our planet and the forces that have shaped it over millions of years.When we think of a crater (火山口), we often imagine the majestic peaks of volcanoes. Indeed, many volcanoes have large craters (火山口) at their summits, where explosive eruptions have blasted away the rock and created a hollowed-out area. One of the most famous examples is the Kilauea volcano in Hawaii, which has an active crater (火山口) that continuously erupts, providing scientists with valuable data on volcanic activity.However, not all craters (火山口) are formed by volcanic activity. Some of the largest and most impressive craters (火山口) on Earth were created by meteorite impacts. The Barringer crater (火山口) in Arizona, for instance, was formed around 50,000 years ago when a nickel-iron meteorite struck the Earth. This impact created a crater (火山口) nearly a mile wide and over 500 feet deep, making it one of the best-preserved impact sites in the world.Studying craters (火山口) helps scientists understand not only the geological processes of our planet but also the history of our solar system. By examining the composition and structure of these craters (火山口), researchers can gain insights into the types of materials that were present during their formation. For example, lunar craters (火山口) provide clues about the Moon's history, as they have remained largely unchanged for billions of years due to the lack of atmosphere and erosion.In addition to their scientific significance, craters (火山口) are also popular tourist destinations. Many people travel to see these natural wonders, hike around them, and take in the breathtaking views. Visiting a crater (火山口) can be a thrilling experience, as it allows individuals to connect with the raw power of nature. The landscapes surrounding craters (火山口) are often stunning, featuring unique rock formations and diverse ecosystems that have adapted to the harsh conditions.Moreover, craters (火山口) serve as important habitats for various species of plants and animals. The unique microclimates created by the geography of a crater (火山口) can support biodiversity that may not be found elsewhere. Conservation efforts often focus on protecting these areas to preserve their ecological significance.In conclusion, craters (火山口) are remarkable geological formations that provide insights into the natural history of our planet. Whether formed by volcanic activity or meteorite impacts, they offer a glimpse into the powerful forces that shape our environment. From their scientific importance to their role as tourist attractions and habitats for wildlife, craters (火山口) continue to captivate our imagination and deepen our understanding of Earth and beyond.

地球是一个充满奇迹的星球，其中最迷人的特征之一就是火山口。火山口是由火山活动或陨石撞击形成的碗状凹陷。这些地质构造可以告诉我们很多关于我们星球历史和塑造它的力量的信息，历经数百万年。当我们想到火山口时，我们常常想象火山的雄伟峰顶。确实，许多火山在其顶端有大型的火山口，爆炸性的喷发将岩石炸开，形成了一个空心区域。其中一个最著名的例子是夏威夷的基拉韦厄火山，它有一个活跃的火山口，不断喷发，为科学家提供了有关火山活动的宝贵数据。然而，并非所有的火山口都是由火山活动形成的。地球上最大、最令人印象深刻的火山口之一是由陨石撞击造成的。例如，位于亚利桑那州的巴林杰火山口大约在5万年前形成，当时一颗镍铁陨石撞击地球。此次撞击形成了一个近一英里宽、超过500英尺深的火山口，使其成为世界上保存最完好的撞击地点之一。研究火山口有助于科学家理解我们星球的地质过程以及我们太阳系的历史。通过检查这些火山口的成分和结构，研究人员可以获得关于其形成时存在的材料类型的见解。例如，月球上的火山口提供了关于月球历史的线索，因为由于缺乏大气层和侵蚀，它们在数十亿年间几乎没有变化。除了科学意义外，火山口也是受欢迎的旅游目的地。许多人旅行来欣赏这些自然奇观，徒步旅行并欣赏壮丽的景色。参观一个火山口可能是一种激动人心的体验，因为它让人们与大自然的原始力量联系在一起。围绕火山口的风景往往令人惊叹，特色独特的岩石构造和适应恶劣环境的多样生态系统。此外，火山口为各种植物和动物物种提供重要栖息地。火山口的地理特征所创造的独特微气候可以支持在其他地方可能找不到的生物多样性。保护工作通常专注于保护这些地区，以维护其生态重要性。总之，火山口是引人注目的地质构造，提供了对我们星球自然历史的深入了解。无论是由火山活动还是陨石撞击形成的，它们都让我们一窥塑造我们环境的强大力量。从它们的科学重要性到作为旅游景点和野生动物栖息地的角色，火山口继续吸引着我们的想象力，加深我们对地球及其以外的理解。