sleepiness
['sli:pinis]
n. 睡意，瞌睡；想睡
同义词
反义词
参考例子
1.The obvious solution to combat sleepiness is to get more rest at night.
克服困倦显而易见的解决之道根本就是保证夜间的睡眠。
2.Melatonin can also increase sleepiness during the day, when the pineal gland is not producing it.
褪黑激素也可以让人在白天产生睡意，在白天时松果体不生产褪黑激素。
3.Temperatures in this range, it seems, help facilitate the decrease in core body temperature that in turn initiates sleepiness.
温度处于这个范围内，似乎利于中心体温的降低，而中心体温降低反过来利于睡眠。
英文解释
n.
1.a very sleepy state
网络释义
sleepiness
困睡度; 嗜睡度、困睡度; 想睡; 瞌睡;
sleepiness driving
驾驶期间瞌睡;
Idiopathic Sleepiness
不明原因引起的嗜睡;
daytime sleepiness
日间嗜睡; 日间嗜睡度、日间困睡度;
excessive sleepiness
过度嗜睡;