听力课堂英语六级频道为各位备考六级的同学们，整理了2021年英语六级作文模板:表起伏，希望对大家有所帮助，一起来看一下吧！
表起伏
1.…to go up and down …起伏不定
eg. The strike rate went up and down during the period from 1952 to 1967.
2.There be ups and downs …有起有伏
eg. Between 1972 and 1979, there were several ups and downs in (某方面).
