求翻译：贰、取得了《住宅交付使用许可证》；甲方对该房屋设定的抵押己注销；甲方已按规定缴纳了物业维修基金；甲方承诺在2005年10月30日前办理房地产初始登记手续，取得新建商品房房地产权证(大产证)，如到时不能取得商品房房地产权证(大产证).乙方有权单方面解除本合同。是什么意思？

II, had obtained the license for residential deliveries; party a mortgage on the House set cancellation; property maintenance funds has been paid according to regulations of party a; party a commitment before October 30, 2005 the real estate primary registration formalities, obtained new commercial

II, had obtained the license for residential deliveries; party a mortgage on the House set cancellation; property maintenance funds has been paid according to regulations of party a; party a commitment before October 30, 2005 the real estate primary registration formalities, obtained new commercial