求翻译：关于我方第C215号销售合同项下4,000打衬衫，拟提请注意货已备妥待运且装运期迫近，但至今仍未收到你方有关信用证。请务必在本月底之前开立信用证并送达我处，以便我方顺利执行这项定单。是什么意思？

On our first c215 sales contract under 4,000 dozen shirts, intended to draw attention to the goods are ready for shipment and the shipment is drawing near, but not yet received your letter of credit. Letter of credit before the end of this month and delivered to my office so that I Fangshun Li imple

On our side of the first 215 C under contract for the sale and 4,000 T-shirt, to be brought to the attention is ready to be shipped, shipping period approached, but had not received the letters you have. Please be sure to open before the end of this month and credit to arrive in my office, so that o

About our C215 number sale contract item of next 4,000 dozen shirt, plans to propose the attention goods to prepare ready awaits shipment also the time shipment is imminent, but still has not received you to concern the letter of credit until now.Please by all means must before end of this month dra

On our C215 4,000 dozen shirts under the contract of sale, to be drawing attention to goods have been approached to be ready for shipment and shipment, but have not yet received your letter of credit. Please be sure to open letters of credit by the end of this month and served us so that our success