atoll

简明释义

英[ˈætɒl]美[ˈætɔːl]

n. [海洋] 环礁，[地理] 环状珊瑚岛

复 数 a t o l l s

英英释义

单词用法

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例句

1.Pukapuka - also known as Danger Island - is the most isolated atoll in the Cooks group, and comprises three islets and a sandbank 1150km northwest of Rarotonga.

也叫危险岛——是库克群岛中最孤立的一个岛屿，由三个小岛和一座沙丘组成，距离拉罗汤加岛1150公里。

2.Although the atoll lost many corals, it kept an abundance of grazing fish that help reefs recover by keeping them clean.

尽管这里的环礁损失了很多珊瑚，但依然有大量的草食鱼类通过清理珊瑚礁来帮助它们复苏。

3.Because the wind blew lengthwise along the atoll, the house had been sheltered by the miles of coconut trees.

因为风是顺着岛的纵长方向吹过来的，这所房子得到好几公里宽的椰林的庇护。

4.The American forces seized the Gilbert Island Atoll from the Japanese. (AP Photo)

美军从日本人手中夺取了吉尔伯特岛的这处环礁。

5.Over the past two years photographer Chris Jordan has documented the affect the plastic debris has had on wildlife on Midway Atoll, which is northwest of the Hawaiian Islands.

在过去的两年中，摄影师ChrisJordan一直在记录塑料碎片对位于夏威夷群岛西北部的中途岛环礁上的野生生物的影响。

6.The turquoise lagoon of French Polynesia's Mataiva atoll stands out against the dark blue of the surrounding Pacific Ocean in an image taken by an astronaut on August 13.

这个绿松色的礁湖，位于法国波利尼西亚群岛的萨摩亚环礁，于周围深蓝色的太平洋形成了强烈的对比，这幅图片是8月13号由航天员拍摄。

7.The atoll 环礁 of Tuvalu is one of the smallest countries in the world.

图瓦卢的环礁是世界上最小的国家之一。

8.Many tourists visit the atoll 环礁 of Bora Bora for its luxurious resorts.

许多游客前往波拉波拉的环礁，享受奢华的度假村。

9.Scientists study coral reefs surrounding atolls 环礁 to understand marine biodiversity.

科学家研究围绕环礁的珊瑚礁，以了解海洋生物多样性。

10.The Maldives is famous for its stunning atolls 环礁 and crystal-clear waters.

马尔代夫以其令人惊叹的环礁和清澈的海水而闻名。

11.An atoll 环礁 is formed from the growth of coral reefs around a lagoon.

一个环礁是由环绕泻湖的珊瑚礁生长形成的。

作文

An atoll is a fascinating geological formation that captures the imagination of many. It is essentially a ring-shaped coral reef, island, or series of islets that encircle a lagoon partially or completely. The beauty of an atoll lies in its unique structure and the rich biodiversity it supports. These formations are primarily found in tropical and subtropical regions, where warm ocean waters provide the ideal conditions for coral growth.The formation of an atoll begins with the growth of coral reefs around the rim of a submerged volcanic island. Over time, as the volcanic island erodes and sinks, the coral continues to grow upwards, forming a ring. Eventually, this process creates a lagoon in the center. This transition from a volcanic island to an atoll can take thousands of years, showcasing the incredible patience of nature.One of the most famous examples of an atoll is the Great Barrier Reef, which is not a single atoll but rather a complex system of reefs and islands, including several true atolls. Another well-known atoll is the Maldives, which consists of 26 atolls and is renowned for its stunning beaches, crystal-clear waters, and vibrant marine life.The ecological significance of an atoll cannot be overstated. These structures provide a habitat for countless species of fish, birds, and other wildlife. They serve as nurseries for young fish, offering protection from larger predators. Additionally, atolls play a crucial role in maintaining the health of ocean ecosystems by supporting coral growth and providing shelter for marine organisms.However, atolls are also incredibly vulnerable to environmental changes. Climate change poses a significant threat, as rising sea levels can submerge these low-lying islands, displacing communities and disrupting local ecosystems. Furthermore, ocean acidification affects coral growth, making it difficult for atolls to maintain their structures. Human activities, such as overfishing and pollution, further exacerbate these challenges, putting the future of atolls at risk.In conclusion, an atoll is not just a beautiful natural phenomenon; it is a vital ecosystem that supports a diverse range of life. Understanding the importance of atolls and taking steps to protect them is essential for preserving our planet's biodiversity. As we face increasing environmental challenges, it is crucial to raise awareness about the significance of these unique formations and advocate for their conservation. By doing so, we can ensure that future generations will continue to marvel at the beauty and complexity of atolls and the life they harbor.

环礁（atoll）是一种令人着迷的地质形成，吸引了许多人的想象。它本质上是一个环形的珊瑚礁、岛屿或一系列环绕部分或完全包围泻湖的小岛。环礁（atoll）的美在于其独特的结构和丰富的生物多样性。这些形成主要分布在热带和亚热带地区，在那里温暖的海洋水域为珊瑚生长提供了理想条件。环礁（atoll）的形成始于围绕淹没火山岛的珊瑚礁生长。随着时间的推移，火山岛逐渐侵蚀并下沉，珊瑚继续向上生长，形成一个环。最终，这个过程在中心形成一个泻湖。从火山岛转变为环礁（atoll）可能需要数千年，展示了大自然的非凡耐心。环礁（atoll）最著名的例子之一是大堡礁，它不是单一的环礁（atoll），而是一个复杂的珊瑚礁和岛屿系统，包括几个真正的环礁（atoll）。另一个著名的环礁（atoll）是马尔代夫，它由26个环礁（atoll）组成，以其令人惊叹的沙滩、清澈的海水和丰富的海洋生物而闻名。环礁（atoll）的生态重要性不可低估。这些结构为无数鱼类、鸟类和其他野生动物提供栖息地。它们为幼鱼提供育幼场所，保护它们免受大型捕食者的攻击。此外，环礁（atoll）在维持海洋生态系统健康方面发挥着关键作用，通过支持珊瑚生长并为海洋生物提供庇护。然而，环礁（atoll）也极其脆弱，容易受到环境变化的影响。气候变化构成了重大威胁，因为海平面上升可能会淹没这些低洼的岛屿，迫使社区迁移并破坏当地生态系统。此外，海洋酸化影响珊瑚生长，使环礁（atoll）难以维持其结构。人类活动，如过度捕捞和污染，进一步加剧了这些挑战，使环礁（atoll）的未来面临风险。总之，环礁（atoll）不仅仅是一种美丽的自然现象；它还是一个支持多种生命的重要生态系统。了解环礁（atoll）的重要性并采取措施保护它们对维护我们星球的生物多样性至关重要。随着我们面临越来越大的环境挑战，提高人们对这些独特形成的重要性的认识，并倡导保护它们是至关重要的。通过这样做，我们可以确保后代继续惊叹于环礁（atoll）的美丽和复杂性以及它们所蕴藏的生命。