4周搞定2000+托福核心词
石头的→碳酸钙的→钙质的
calcareous
常考释义
However, in addition to corals there are enormous quantities of algae, some calcareous, which help to build the reefs.
然而，除了珊瑚以外，还有大量的藻类、一些钙质都对珊瑚礁的形成有帮助。
来源于：阅读OFFICIAL47 P3adj. 钙质的，石灰质的
Calcareous sediments accumulated on a sea floor and eventually were compacted and cemented to form limestone.
钙质沉积物堆积在海底，最后压紧并胶结形成石灰岩。
However, in addition to corals there are enormous quantities of algae, some calcareous, which help to build the reefs.
然而，除了珊瑚以外，还有大量的藻类、一些钙质都对珊瑚礁的形成有帮助。
来源于：阅读OFFICIAL47 P3以上图片仅供学习交流使用，版权归原作者所有，如有侵权，请与我方联系
