fluctuate

/ˈflʌktʃueɪt/VCE📚 13061 1六级考研托福雅思
If something fluctuates, it changes a lot in an irregular way. 波动

verb [vi. 不及物动词]波动,起伏不定;使波动,使动摇

Body temperature can fluctuate if you are ill.
如果你病了,体温会波动。

fluctuate

-ate ⌜ 表示使成为或具有某种特性的 - indicating to make or become ~ ⌟
flu(流动) + ctu + ate → (水)流动 → 起伏, 涨落
单词造句:
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Don't worry about tiny fluctuations in your weight. 不用担心你体重的轻微波动。
The analysis reveals that intensity appears to fluctuate with a clear, well-defined rhythm. 分析表明,强度似乎以一种清晰的、明确的节奏在波动。
Later on in the early years of the nineteenth century, when Fort Vancouver became the headquarters of the Hudson's Bay Company, deer populations continued to fluctuate. 后来,在19世纪初,当温哥华堡成为哈德逊湾公司的总部时,鹿的数量继续波动。
The shipping costs may fluctuate according to the season and market demand. 运输费用可能会因季节和市场需求的变化而有所波动。