1.When depressed these patients experience painful sadness,negative thinking,and indifference to things that used to bring them happiness.
当抑郁的时候,这些病人经历着痛苦的悲伤,消极的想法,而且对那些过去带给他们幸福的事物漠不关心.
2.Human learning and memory have been studied mostly with verbal material (such as word lists and stories) or with tasks requiring motor skills (such as learning to type or to play an instument).
人类的学习和记忆大部分通过口头的材料（如单词清单和故事）或者用要求运动技能的任务（如学习打字或者演奏一项乐器）来进行研究.