·非常遗憾，到货的确与样品不完全相同

We greatly regret to say that the goods are not in accordance with your sample.

·很遗憾，尽管我方数次催促，你方始终拒绝为尚未完成的合同开立信用证。

We regret that you still refuse to establish L/C for the pending contract in spite of our pressing for execution time and again.

·对照发票进行查验之后，发现数量少了很多。

After checking the goods against your invoice, we discovered a considerable shortage in number.