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詞源是volatil+ity詞綴,中文意思是n. 易變,活潑揮發性
例如
Volatility can be measured in two ways.衡量波動率有兩種方法。
The result is volatility in food prices.其結果導致了糧價的波動。
A little bit of volatility, too.一點點波動,也是如此。
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