ups and
问题描述：
ups and
答
起伏
答
n. 沉浮；盛衰；高低
答
起起落落
是个名词。例如，Jackson had ups and downs in his career.
答
比喻重重困难，艰难险阻，跌宕起伏
答
（心情上或经济指标的）起伏波动都用这 ups and downs