hisˌtoric ˈlow ( hisˌtorical ˈlow, less frequent )
noun
[] a time when a value or an amount is lower than at any other time; this value or amount历史最低时期；历史最低值◆Interest rates are at historic lows.利率处于历史最低点。◆The yield on the bond fell to a historic low of 0.7%.债券收益下跌到 0.7%，创下历史最低点。