drowsiness
睡意
drows·i·ness /-zɪnəs/ 名詞
睏倦,昏昏欲睡
drow·si·ness, n. State of being drowsy.
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drowsiness
n : a very sleepy state; "sleepiness causes many driving
accidents" [syn: sleepiness, somnolence] [ant: wakefulness]