求翻译：亲爱的先生：我们过去都是用即期信用证支付我们的订单。这一订单总额达到了27万美元，但因为眼前我们流动资金储备不足，让资金沉淀3个月可能造成麻烦。我们非常感谢你们过去对我们的支持，这一次如能帮忙，同意用50%信用证，50%付款交单的方式付款，将不胜感激。如果同意，请寄来合同，收到以后我们会立即开出信用证。此致，敬礼。是什么意思？

Dear Sir: We are using the last letters of credit at sight orders to pay us. The orders totaled $ 270,000, but just because we have insufficient working capital reserves, to fund three months of precipitation may cause trouble. We thank you for supporting us the past, this time if they can help, the

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Dear gentlemen: We pass all are pay our order form with the immediate letter of credit.This order form total amount has amounted to 270,000 US dollars, but because our floating capital reserve insufficiency, lets the fund precipitate at present for 3 months possibly to create the trouble.We thank yo

Dear Sir: we're used to using the letter of credit to pay for our orders. The order total at 270,000 dollar, but because we lack of liquidity reserves, funds deposit 3 months might prove troublesome. We are very grateful to you our support in the past, this time if you could help, agreed with 50% le

Dear Sir: we're used to using the letter of credit to pay for our orders. The order total at 270,000 dollar, but because we lack of liquidity reserves, funds deposit 3 months might prove troublesome. We are very grateful to you our support in the past, this time if you could help, agreed with 50% le