最近肯尼亚对小麦和玉米进口实行免税，拉低了粮食的价格，平息了民众的怒火。
Kenya recently waived duty on wheat and maize imports, dampening prices as well as anger.
地方零售商很久就抱怨，网络店铺免税的地位给了它们不公平的价格优势。
Local retailers have long protested that online stores' tax-free status gives them an unfair price advantage.
有时使用的唯一手段就是可变的出口税，当国际价格过低时，即予免税。
Sometimes the only measure used is a variable export tax that is waived when world prices become too low.
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