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」
Implementers shouldn't need to jump through these hoops. When you find yourself needing to relax or bypass spec semantics just to achieve reasonable performance, that's a sign something is wrong with the spec itself. A well-designed streaming API should be efficient by default, not require each runtime to invent its own escape hatches.
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Much of Bridgerton Season 4 concerns lovers hailing from opposing worlds, drawn to each other like a moth to a flame despite not fitting the Ton's social rules for marriage matches. As Julie Andrews' always comforting Lady Whistledown voice-over says, "The draw of two differing desires can be torture at best… Perhaps the desire is not the problem, but the world itself." This season, Sophie and Benedict struggle with the impossibility of their match across classes, and through subtle hints, keen-eyed viewers will see a long-overdue journey on the horizon.
They added: "While no final decisions have been made, we appreciate this is an uncertain time for our colleagues at Uttoxeter and we are supporting them throughout the consultation process.
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