sleeplessness是什么意思？

sleeplessness

英['sli:pləsnəs] 美['slipləsnəs]

• n. 失眠，警觉；

副词：sleeplessly;

形容词：sleepless;

例句

• Strong coffee or tea late at night may cause sleeplessness. 深夜喝浓咖啡或浓茶可能会导致失眠。
• Sleeplessness is sometimes the side effect of certain medications. 失眠有时是某些药物产生的副作用。
• Modern pharmacy has solved the problem of sleeplessness. 现代制药学已经解决了失眠问题.
• Strong coffee or tea late at night may cause sleeplessness... 深夜喝浓咖啡或浓茶可能会导致失眠。

英语四级真题

His doctors were puzzled by the strange case of permanent sleeplessness.
出自-2014年6月听力原文
What could have accounted for Al Herpin's sleeplessness
出自-2014年6月听力原文

柯林斯高阶英汉双解学习词典释义

• ADJ-GRADED
  不睡觉的;不眠的
  A sleepless night is one during which you do not sleep.
  例句
  I have sleepless nights worrying about her. 我好几个晚上都睡不着，一直担心她。
• ADJ
  睡不着的;失眠的
  Someone who is sleepless is unable to sleep.
  例句
  A sleepless baby can seem to bring little reward. 宝宝睡不着觉似乎没有任何好处。

英英词典释义

• Noun
  1. a temporary state in which you are unable (or unwilling) to sleep