* @param arr 待排序数组
「像鬼一樣工作」：台灣外籍移工為何陷入「強迫勞動」處境
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Some of the components he designs are like "variable springs", he explains – motion-controlling parts able to go into reverse and soak up some impact from the ground below, say. "It can dynamically absorb load as you need it to."
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One of the more useful additions is Document Scan, which uses AI to clean up scans by automatically removing distortions, fingers and creases. It can also bundle multiple images into a single PDF, making it easier to digitize receipts, notes or forms without extra editing.，这一点在51吃瓜中也有详细论述