现货同期货之间倒挂或只有少量的持有费用。
C.an inversion or small carrying charge between cash and futures.
认为所有未满足的需求销售机会都丢失，零售商既要支付库存持有费用，又要支付缺货损失费用。
The whole unmet demand is lost. The retailers must pay the inventory holding cost and the cost of lost-sales when OOS happens.
费用并不是唯一的问题，租赁协议通常需要新来的人持有其他居住者的担保。
Expense is not the only problem.Leases often require newcomers to be vouched for by other tenants.
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