CRB commodity futures index was down 1.1 percent, over the past four one-day, the index has fallen by 5.4%.是什么意思_CRB commodity futures index was down 1.1 percent, over the past four one-day, the index has fallen by 5.4%.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句