问题描述：
英语翻译
求翻译高手,外贸报盘中的payment Payment:By confirmed ,irrevocable L/C payable by draft at 60 d/s to reach us 30 days before the time of shipment.
还有一个表述差不多：payment Payment:By confirmed ,irrevocable L/C payable by draft at sight to be opened 30 days before the time of shipment.
求翻译高手,外贸报盘中的payment Payment:By confirmed ,irrevocable L/C payable by draft at 60 d/s to reach us 30 days before the time of shipment.
还有一个表述差不多：payment Payment:By confirmed ,irrevocable L/C payable by draft at sight to be opened 30 days before the time of shipment.
问题解答：
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