You need to pay attention to the content since it’s not always on point
They migrate thousands of kilometres to find stable sea ice during Antarctic summer to wait out what is called a "catastrophic moult" every year.
，这一点在旺商聊官方下载中也有详细论述
if (minIdx != i) {，更多细节参见51吃瓜
Keep track the history of the keyword to determine when a keyword is rising or down in popularity over time.
const stack = []; // 存更大温度的索引栈（核心优化：仅存索引，替代对象）