听课: 1.(听人讲课) attend a lecture; sit in on a class; listen to the teacher in class 短语和例子用心听课 listen to the teacher in class attentively2.(了解课堂教学) visit a class; visit classroom 短语和例子校长经常事先不通知地去听
全神贯注: give one's whole attention [mind] to ...; apply [bend] the mind to ...; be absorbed [engrossed] in ...; be preoccupied with; concentrate the whole energy upon ...; give one's mind wholly t