pref·e·ren·tial /ˌprefəˈrenʃəl◂/ adjectiveadj [only before noun] ADVANTAGEpreferential treatment, rates etc are deliberately different in order to give an advantage to particular people 优先的,优待的,优惠的 preferential credit terms for reliable borrowers 向可靠借款人提供的优惠信贷条件
—preferentially adverbadv