sleeplessness

/ˈsliːpləsnəs/
📚 26528
a temporary state in which you are unable (or unwilling) to sleep.

noun [具体名词] 失眠

Strong coffee or tea late at night may cause sleeplessness. 晚上喝浓咖啡或浓茶可能引起失眠。

后缀: lessness 【noun】 缺乏某种特性或状态 - indicating the lack of a particular quality or state 原词: sleeplessness 是通过后缀 【lessness】 构成的派生词
单词造句: