The Index of Leading Economic Indicators (LEI) in the US acts as an early warning system,telling us when the economy is about to change direction.是什么意思_The Index of Leading Economic Indicators (LEI) in the US acts as an early warning system,telling us when the economy is about to change direction.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句