fluctuate

动词

1. 1

   波动、起伏、涨落

   Oil prices fluctuated wildly throughout the second half of the year.

   油价在下半年剧烈波动。

2. 2

   变化不定、摇摆、反复

   Her mood fluctuates depending on how much sleep she gets.

   她的情绪会依睡眠多寡而变化不定。