1. 群礁：reefing缩帆 | reefs群礁 | reek烟水蒸气臭气冒烟发臭气
2. 巴布亚新几内亚的珊瑚礁：16、Australian?Outback?澳洲内陆(澳大利亚) | 17、Papua?New?Guinea?Reefs?巴布亚新几内亚的珊瑚礁 | 18、Sahara?非洲撒哈拉大沙漠
3. 礁体：reefrock 礁岩 | reefs 礁体 | reeftackle 缩帆绞辘
1. Coral reefs are underwater structures made from calcium carbonate secreted by coral and mangroves grow in saline coastal habitats in the tropics and subtropics.
2. The Hong Kong cargo vessel was stranded after it hit reefs in the area and took on water.
3. Thomas said that assisted colonization could be applied anywhere, from Australian tropical forests to coral reefs.
4. Climate change is hitting coral reefs hard, turning a once vibrant diving and fishing locations into bleached shadows of their former glory.
5. The region has been the fastest developing in the world since the past two decades, imposing enormous pressure on the ecosystems such as mangrove forests and coral reefs.
6. Some environmentalists see false reefs as a small way to protect the patches of coral that are left.
7. The fourth leg from Singapore to Qingdao took its toll on several boats that encountered coral reefs and then severe storms.
8. " I suddenly saw many coral reefs appearing and the tide seemed to be getting stronger, " said ship captain Chen Yan.
9. The report concluded black sponge is attacking coral reefs around the islets of Green Island and Lanyu off southeastern Taiwan.
10. For example coral reefs will be lost in the next 20 to 40 years if global warming continues at the current pace.