Joyce@静艳
你这句话有歧义，如果你想说下降到最低点的17% 可以是 reached the lowest point by 17%如果你想说，下降到最低点17%(最低点就是17％这个位置) 那就应该是 reached the lowest point at 17% 参考：下降了 17％ ： decrease by 17％
飞云纵览
1、at all time low
例句：With foreign currency reserves dwindling and the rupee trading at all time lows against the dollar, Pakistan is in danger of defaulting on its debt.
由于外汇储备下降，以及卢比对美元的汇率降到历史最低点，巴基斯坦面临无法偿付国际债务的风险。
2、fall to an all-time low
例句：The chairman is minuted as having said that profits had fallen to an all-time low.
根据会议记录，主席说盈利已降到历史的最低点。
3、down at record lows
例句：Dollar-denominated pulp costs are up because Brazil's currency, the real, is down at record lows& a contagion effect from the Argentine economy.
由于阿根廷经济（恶化）的传动效应，巴西货币里亚尔对美元的汇率降到了历史最低点，以美元计价的纸浆成本由是上扬。
4、sink to an all-time low
例句：The government's popularity rating sank to an all-time low.
政府的民众支持率降到了历史最低点。
5、to the lowest point in history
例句：The chairman is minuted as having said that profits had fallen to the lowest point in history.
根据会议记录，主席说盈利已降到历史的最低点。
夏天天夏天
是下降到最低点的17%吗？那样的话就应该是descend to 17% of the lowest point/nadir.你那句用reach不精确，数据上的下降应该用descend。
Romy莎莎mei
最低点Lowest point最低点nadir; rock bottom; [医]min.; minima; low-water mark双语例句1新的民意调查显示总统的支持率跌到了他就职以来的最低点。New public opinion polls show the president's approval rating at its lowestpoint since he took office. 2这些数据显示了目前经济周期的最低点。The figures marked the final low point of the present economic cycle
