方向遍历顺序说明下一个倒序（从右往左）先处理右侧，栈里存「右侧候选」上一个正序（从左往右）先处理左侧，栈里存「左侧候选」
Александра Синицына (Ночной линейный редактор)
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英國國家社會研究中心的資深研究員約翰·柯蒂斯爵士（Prof Sir John Curtice）表示，他們每年持續得到相同趨勢，讓他對其結果比對YouGov的兩個單點數字更有信心。
The hard truth? Raising venture capital too early can cost you control, leverage and even your company. Early capital is often highly dilutive, selling off your future before your blueprint is complete. The difference between lighting a spark and burning your equity to ash is a lesson many founders learn too late.