星级典句：

第一句：Our usual terms of payment are by confirmed, irrevocable letter of credit in our favor, reaching us one month ahead of shipment.
我方一贯的支付方式是开具以我方为受益人，在发货一个月前发给我方保兑的、不可撤销的信用证。

A: Mr. Brown, it is time to talk about the terms of payment.
布朗先生，我们该谈支付条件了。
B: Do you have any special requirement?
您有什么特别的要求吗？
A: Our usual terms of payment are by confirmed, irrevocable letter of credit in our favor, reaching us one month ahead of shipment.
我方一贯的支付方式是开具以我方为受益人，在发货一个月前发给我方保兑的、不可撤销的信用证。

第二句：Don't you think L/C is a little inconvenient?
您不认为信用证不方便吗？

A: Don't you think L/C is a little inconvenient?
您不认为信用证不方便吗？
B: As it is the first time for our cooperation, we would like to choose L/C.
因为这是我们第一次合作， 所以我们选择信用证付款。
A: OK. It's up to you.
好的。您来决定。

其他表达法：

信用证支付是比较安全的手段，但是买方开具信用证比较麻烦，作为第一次合作，采用信用证较为妥当。

The terms of payment we wish to adopt are confirmed and irrevocable letter of credit.
我方希望采用保兑的、不可撤销的信用证作为支付条件。