上课attend a class; conduct a class
代表representative; on behalf of
先后order of priority/precedence; successively
掌palm; strike with the palm of the hand
绍carry on; a place in Zhejiang Province
胞afterbirth; born of the same parents
自我oneself; be conscious of oneself
舌头tongue; enemy soldier captured to extract information
规instrument for drawing circles; rule
讲究be particular/fastidious about; careful study
贝mollusc; cowry used as money in ancient times
赵one of the states of the Zhou Dynasty; a surname
辞diction; a type of classical Chinese literature
鬼ghost; used to form a term of abuse for ignoble character
李四光Li Siguang , Mongol-born, Japanese trained geologist, prominent in early oil exploration