对于: to; for; about; with regard ...额外: extra; additional; added价钱: price我们: we有: 5年 fifteen years较: compare长: older; elder; senior的: 4次方是 The fourth power of 2 i ...保证期限: duration of guaranty; period ...对于额外价钱我们有较长的保证期限517: our guarantee covers maintenance for both parts and labor延长的保证期: extended warranty而有较长的: bath life time保证期限: duration of guarantee period; duration of guaranty; period of guarantee保证期限, 担保期: period of guarantee保用期 保证期 担保期限: guaranteeperiod较长的: longish; major保证期: guarantee period; guarantee time; warranty period额外价格: exhaust price; extra price; permium保证期票: principal note保证期索赔: warranty claims声量保证期: acoustic assurance period修葺保证期: repair guarantee period延长保证期: extended warranty质量保证期: freshness date; quality assurance date; warranty period保存期较长的牛奶: long life milk