信用证翻译，请高手帮助

Question

以下四段是信用证中单据的要求及附加条件，可是我翻译的不准确，请高手帮偶翻译一一下，谢谢！
1、signed commercial invoice in one original and three copies indicating contract NO.DB23/J2835

2、2/3 SET(S) of clean on board ocean bills of lading made out to order,bank endorsed and marked freight prepaid and notify accountee dept AMDB23.

3、insurance effected by buyer

4、T.T. beimbursement not acceptable

Answer 1

1.经签署的写有合同号DB23/J2835 的商业发票原件一份及复印件三份。
2.凭银行指定和背书显示运费预付并注明通知开证人dept AMDB23的所开立的2/3 套清洁的已装船的海洋提单。
3.保险由买方购买。
4.不接受电汇付款。
我们与国外生意往来很多，信用证我常翻译。

Answer 2

1、signed commercial invoice in one original and three copies indicating contract NO.DB23/J2835
开商业发票一份，复印件3份，并注明合同号：DB23/J2835
2、2/3 SET(S) of clean on board ocean bills of lading made out to order,bank endorsed and marked freight prepaid and notify accountee dept AMDB23.

3、insurance effected by buyer

4、T.T. beimbursement not acceptable