Rather than lending at a negative interest rate, you could hold onto cash by, for example, stuffing it in your mattress.
你不会以一个负利率贷款给别人，你宁愿持有现金，比方说，把钱塞在床垫里。
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During the preparation, high energy ray is used to radiate the polymer, and radiation dosage and conducting stuffing content are altered to control the shrinking rate and shrinking force effectively.
Results The once-only stuffing successful rate, symptoms during stuffing and night sleeping time of the two groups have significant difference( P< 0.01).