atoll

n.

环状珊瑚岛；

复数：atolls

1. An atoll is a circular reef surrounding a lagoon.
   环礁是环绕着一个泻湖的环形礁石。
2. Five marines were sent to clean up the atoll.
   5艘船只被派往环状珊瑚岛去肃清残敌。

Climate Dangers and Atoll Countries
An ecological shift in a remote coral atoll of Belize over 25 years
Marshak-Rothstein AToll-like receptors in systemic autoimmune disease. Nat Rev Immunol 6: 823-835
Atmospheric trace elements at Enewetak Atoll: 2. Transport to the ocean by wet and dry deposition
Atmospheric trace elements at Enewetak Atoll: 1. Concentrations, sources, and temporal variability
The Natural Regulation of Giant Tortoise Populations on Aldabra Atoll: Recruitment
Unnatural Emotions: Everyday Sentiments on a Micronesian Atoll and Their Challenge to Western Theory
Trophic Structure and Productivity of a Windward Coral Reef Community on Eniwetok Atoll
Recent Variability in the Southern Oscillation: Isotopic Results from a Tarawa Atoll Coral
Population processes in a large herbivorous reptile: the giant tortoise of Aldabra atoll