| 词汇 | unfledged |
| 词根词缀 | 词源： c.1600, of persons, "immature, not experienced," from un- (1) "not" + pp. of fledge. Literal sense of "not yet covered in feathers" is recorded from 1610s. |
| 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。