| 单词 | fastness |
| 释义 | Word Frequency fastness(ˈfɑːstnɪs) noun 1. a stronghold; fortress 2. the state or quality of being firm or secure 3. the ability of a dye to remain permanent and not run or fade 4. archaic swiftness Word origin Old English fæstnes; see fast1 |
| 随便看 |
英语词典包含233703条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。