- 1
A fluctuation is a change in a number that goes up and down — a price, a temperature, a level, an amount. It does not say which way the number is heading for good; it says it will not sit still. News, science, and money talk use this word a lot. “The weather changes” is broader. Fluctuation is the wave-like moving, sometimes small, sometimes wild.
波動、起伏
組成fluctuate + -ion. Borrowed from Latin fluctuatio, from fluctuo, from fluctus, a wave.
同家族的字
- fluctuatethe verb; fluctuation is the noun made with -ion
原始詞典資料3 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
fluctuationnoun/flʌkt͡ʃuːˈeɪʃən/
- 1
A motion like that of waves; a moving in this and that direction; an irregular rising and falling.
- the fluctuations of the sea
- The rolling stock has been specially designed to meet the needs of the fluctuation of traffic in peak and off-peak periods.
- 2
A wavering; unsteadiness.
- fluctuations of opinion
- fluctuations of prices
- 3
In medicine, a wave-like motion or undulation of a fluid in a natural or abnormal cavity (e.g. pus in an abscess), which is felt during palpation or percussion.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。