| 单词 | insomnia |
| 释义 | insomnia —insomnious, adj. /in som"nee euh/, n. inability to obtain sufficient sleep, esp. when chronic; difficulty in falling or staying asleep; sleeplessness. [1685-95; < L, equiv. to insomn(is) sleepless (in- IN-3 + somn(us) sleep + -is adj. suffix) + -ia -IA] |
| 随便看 |
英语词典包含168451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。