fluctuate

释义

vi. 变动, 起伏, 动摇\nvt. 使波动, 使动摇

例句

Insect populations fluctuate wildly from year to year.

昆虫的数量每年变化很大。

Prices were volatile, fluctuating between 20 and 40.

价格不稳定，在20至40美元之间波动。