fluctuate

verb

1 be unstable

2 move or sway in a rising and falling or wavelike pattern Synonym: vacillate waver

3 cause to fluctuate or move in a wavelike pattern ^[2] 

pressure fluctuate壓力波動

quality fluctuate質量波動

temperature fluctuate温度波動 ^[1] 

Fruit prices fluctuate with the seasons.

水果價格隨着季節波動。

Of course, prices do fluctuate and you might have better or worse luck than we did.

當然，這樣的價格波動不定，你可能有更好或更壞運氣比我們快。

If the security should fluctuate up and down quickly, your trailing stops will always be triggered too soon before you have opportunity to achieve sufficient profits.

如果安全性應該向上和向下的波動很快，你將永遠落後停止觸發為時過早之前你有機會實現足夠的利潤。 ^[1] 

詞根

fluctu= wave 波浪 ^[2] 

第三人稱單數： fluctuates 現在分詞： fluctuating 過去式： fluctuated 過去分詞： fluctuated 派生詞： fluctuation n. ^[2]