一、英譯中：請將下面這段英文譯成正確、流暢的中文（20 分） Amazon just launched technology that could change everything. New Amazon technology, introduced at two Amazon Go stores, lets shoppers pay for purchases by holding their hands over a scanner. The system, called Amazon One, may herald a new way of identifying yourself and paying for things. Amazon Go is itself a proof-of-concept store—once you scan yourself in with your smartphone, you pick up whatever you want and walk out, and the system charges you automatically. And Amazon has also offered that technology to other companies. Widespread adoption of Amazon Go technology will be challenging, though, because it depends on a storewide array of cameras and sensors that track every shopper and every item as it is removed from the shelf or put back there.