除非你们找一家有信誉的公司担保，否则我们不接受用承兑交单付款。

除非你们找一家有信誉的公司担保，否则我们不接受用承兑交单付款。
【正确答案】：We will not accept payment by D/A unless you can find a reputable bank to act as your guarantor.