基本解释方差互換英汉例句雙語例句Investors can take part in a “variance swap”, whereby one counterparty agrees to receive implied volatility and the other receives realised.投資者可以蓡加一種叫“差異互換”的衍生品機制，藉此交易雙方達成協議，一個接收隱含波動，另一個接收實際波動。variance swap更多例句专业释义經濟學方差互換