(1)first, second, third...第一，第二，第三
例：First, she had studied chemistry during her sophomore and junior years. Second, she never missed a class. Third, she performed every required experiment in all her chemistry courses. Fourth, she always worked hard. Her classmates were sure that she would win top award in Chemistry during her senior year at the university."
(2)To begin with...,moreover...,finally...，首先...，此外...，最後...
例：There are a few reasons for his decision of studying law. To begin with, he is very interested in social affairs and it seems the best way to enable him to engage in these activities. Moreover, his father is a lawyer. He has always encouraged him to do something similar. Finally, he is sure he can get a job after graduation."
例：Meanwhile, the better skills and knowledge children possess, the more opportunities they will be ensured."
例：Since then, the Olympics turned out to be an instrument of peace and freedom for small nations."
例：Therefore, if this is included in good education that parents are seeking now, their children will be definitely ensured a bright future."