fluctuation

名词

1. 1

   波动、变动、涨跌常用复数

   Sharp fluctuations in oil prices worried investors last month.

   上个月油价剧烈波动，令投资人忧心。

2. 2

   起伏、不稳定

   The doctor asked about any fluctuation in her weight this year.

   医生询问她今年体重有没有起伏。

3. 3

   消长、变化

   We track the fluctuation in student numbers every semester.

   我们每学期都追踪学生人数的消长。