How much wetter could our winters get?
// 3. 计算当日跨度：跨度 = 当前索引 - 上一个更大值的索引（栈空则为i+1）
，更多细节参见搜狗输入法下载
Source: Computational Materials Science, Volume 267
When a SpaceX rocket failure set the skies aflame over western Europe last February, no-one was sure if the debris was also polluting our atmosphere.
// (it isn't always in every impl)