n.缓慢；迟钝
The slowness of her progress discouraged her. 她进步缓慢，使她很沮丧。
Hard working often counterbalances slowness at learning. 勤奋往往能弥补智力的迟钝。
He makes up for his slowness by working twice as hard as everyone else. 他为了弥补自身的迟钝，投入了别人两倍的心力来工作。
