1. Bioherm type comprises tower reef, patch reef, massive reef, platform-edge reef and atolls etc. 生物礁类型有塔礁、补丁礁、块礁、台地边缘礁、环礁。
2. The Tuamotu Archipelago is part of French Polynesia, and forms the largest chain of atolls in the world. 土阿莫土群岛隶属于法属波利尼西亚，是世界上最大的环礁岛群。
3. Kingman Reef is part of a chain of Pacific atolls and islands that straddles the Equator south of Hawaii. 金曼暗礁是一系列的太平洋环状珊瑚礁和岛屿的一部份跨坐于夏威夷的南部和赤道之间。
4. Atafu is just five miles wide and is the smallest of three atolls in the Tokelau Islands, a New Zealand territory. Atafu仅有5英里宽，是托克劳群岛的三个环礁中最小的一个，领土属于新西兰。
5. The eclipse drew an arc across the open sea and uninhabited atolls, making its main landfall on remote Easter Island. 日食在开阔的海域和无人居住的环礁划出一条弧线，日落则在偏远的复活节岛。
