除了欧盟提供一般优惠待遇外，双边的合作夥伴协定亦于一九九八年生效。
The EU provides Ukraine with a Generalized System of Preferences (GSP) as well as a Partnership and Co-operation Agreement (PCA) that took effect in 1998.
比如说，如果你们公司的一般政策是在30天内付清应付款项，那么就为在14天内付清款项的客户提供2%的小优惠。
For instance, if your usual policy is to have payments due in 30 days, offer a small discount such as 2 percent to customers who pay within 14 days.
一般来说，商家可能最多要等上两个星期的时间，才能获得反馈，知道老式的纸质优惠券在顾客中的使用情况如何。
It can take up to two weeks for merchants to receive feedback as to how well a plain-old paper coupon performed with customers.
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