the inability to obtain adequate sleepa nagging wakefulness that seemed resistent to all of the standard home remedies
a nagging wakefulness that seemed resistent to all of the standard home remedies
insomnia, sleeplessness
alertness, restlessness
drowsiness, sleepinessnarcolepsy
英语同义词词典收录了63618条英语词条，基本涵盖了全部常用同义词或反义词的辨析及翻译，是英语学习的有利工具。