单词	sleeplessness
释义	sleeplessness /ˈsliːpləsnəs / noun [mass noun] Inability to sleep; insomnia: he began to suffer from bouts of sleeplessness... I finally read the warning about nervousness, dizziness, or sleeplessness. In the international classification of sleep disorders, there are well over 80 specific causes of sleeplessness. A number of problems can contribute to your sleeplessness during pregnancy.
随便看	radish communist radish fly radish tree radishy radium radium beam radium bomb radium burn radium clock radium dial radium emanation radium needle radium series radium therapy radius radius arm radius bar radius of action radius of curvature radius of gyration radius of torsion radius rod radius saw radius vector radix

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