复数： atolls
易混淆的单词： Atoll

This is the bikini atoll .

这就是比基尼环礁。

An atoll is a ring-shaped island that encloses a central lagoon .

环礁是一座环状的岛屿，中心围起一团海水形成泻湖。

But mr kayanne is also leading a japanese project to create a beach made out of home-grown star sand in tuvalu , a south pacific atoll perilously close to sea level .

但是茅根创同样也领导着日本项目，通过图瓦卢（一个西太平洋环状珊瑚岛，濒临接近海平面）本土产的星沙，去制造海滩。

The largest coral atoll in the tuamotu archipelago is rangiroa : 20 tiny islets surrounding a large lagoon .

土阿莫土群岛最大的环礁岛就是伦吉拉岛，由一座大型湖环礁周围及环绕周围的20座小岛构成。

At roughly 8km wide , atafu atoll is the smallest of three atolls comprising the tokelau islands in the southern pacific .

位于南太平洋的托克劳群岛由三个环礁岛组成，约8公里宽的阿塔福环礁是其中最小的一个。