translation.en: A very good measure of the risk of this financial market is the peaks-to-valleys that represent a worst case scenario when you bought at the top and sold at the bottom.
translation.zh: 测量金融市场风险 的一个不错的方法叫“峰谷法”， “峰谷”就是指最高点买入， 最低点卖出的最坏状况。