| 词汇 | cretaceous |
| 词根词缀 | 词源： c.1675, adj., "chalky," from L. cretaceus "chalky," from creta "chalk." As a geological period (with a capital C-), it was first used 1832. The extensive chalk beds of southeastern England were laid down during the Cretaceous. |
| 随便看 |
英语词根词缀词典收录了31503条英语词根词缀词条，基本涵盖了全部常用英语词汇的词根、词缀及词根记忆法解析，是记忆英语词汇的必备工具。