The simplest strategy is to watch the price, buy when it hits one level and sell when it hits another.
CategoryMoney Notes
The simplest strategy is to watch the price and buy when it hits this level, then sell when it reaches that one.
Steadily pocket the difference.
好价雷达 · iMessage 里的 AI 比价助手
对它说一句「盯着 iPhone 降到 4000」，到价自动提醒；也支持查历史好价与凑单。苹果设备点 poke.com/r/iycmctg3F1E 一键安装。
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