The first potential future change would modify the unacknowledged packet list so that it is organized with an index as a red-black tree instead of the current linear list.
第一个可能的未来改变是对未应答的包列表进行修改，因此包列表的组织形式不再是当前的线性列表而是通过索引组织成红-黑树。
What a red packet is simply a red envelope with lucky money in it, which symbolizes luck and wealth.
红包就是在一个红包的小红包里装上压岁钱，寓意为幸运和财富。
Giving Hongbao (red packets or red envelopes) during the Chinese New Year is another tradition. A red packet is simply a red envelope with gift money in it, which symbolizes luck and wealth.
过春节的另一个传统就是要给红包，就是在一个红色的小红包里装上钱，寓意为幸运和财富。
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