drowsiness

n. 睡意

drop out, drop over, drop to one's knees, drop-goal, drop-hammer, drop-forge, drop-press, drop-kick, drop-out, droplet, dropout, dropper, droppings, dropsical, dropsy, dross, drought, drove, drover, drown, drowse, drowsily, drowsy, drubbing, drudge, drudgery, drug, drug addict, drug dealer, drug pusher, drugget, druggist, drugstore, Druid, drum, drum brake, drum major, drum majorette, drum-kit, drumbeat, drumhead, drummer, drumming,