preferential是什么意思 a. 优先的, (关税等)优惠的[经] 特惠的; 特惠关税率, 优先权 s manifesting partiality preferential的用法和例句: 1. So we should show them preferential treatment. 所以我们要给他们优惠待遇 2. I didn't want to show preferential treatment...