VOA慢速英语:睡眠充足有助于大学生的课堂表现

relax(ing) – v. to spend time resting or doing something enjoyable especially after you have been doing work

habit(s) – n. a usual way of behaving

focus(ing) – v. to direct your attention or effort at something specific

deprived – adj. not having the things that are needed for a good or healthy life

impact(ing) – v. to have a strong and often bad effect on something or someone

point(s) – n. praise, credit, or approval for doing something good or helpful

academic – adj. of or relating to schools and education

randomly – adv. chosen or done without a particular plan or pattern

caffeine – n. a substance that is found especially in coffee and tea and that makes you feel more awake