porosity index的用法和樣例：
例句
- Volatility continues to increase both in FX implied vols and VIX index.
外匯隱含波動(dòng)和波動(dòng)率指數在繼續增加。 - At that point the market saw a huge selloff, particularly in mutual funds, and the Volatility Index hit unprecedented levels.
在那時(shí)市場(chǎng)上出現了巨量拋售，尤其是共同基金的機構投資者們，由此波動(dòng)率指數開(kāi)始觸及史無(wú)前例的高點(diǎn)。
