通貨膨脹迫使家庭縮減支出。米娜說，她家已不再購買品牌商品，自2017年以來也未曾出國旅行。
It was a huge step forward for Bezos and his company that has spent years getting to the point of sending a rocket into orbit.
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"We can raise it up again after a year to change the batteries. That means we can avoid using divers, which is a really risky operation that we wanted to avoid," he said.
Blockchain guarantees your data's authenticity—not just its accuracy, but also its irreversibility. It can also be used to store data that are difficult to register, like legal contracts, state identifications, or a company's product inventory.