concede vt. 勉強，承認，退讓vi. 讓步
例句：The candidate conceded that he had lost the national election.
這位候選人承認他已經在全國競選中失敗。
concession n. 讓步
例句：Donald said that he could not make concession which is outside theregulation.
唐納德不能作出越規(guī)的讓步。
precede v. (于)，在……之前，先于
例句：Edward preceded his speech with a few words of welcome the specialguests.
愛德華在演講之前先說了幾句對特邀來賓表示歡迎的話。
predecessor n. 前輩，前任，(被取代的)原有事物
例句：He is working hard to learn from his predecessors.
他正努力向他的前輩學習。
preceding adj. 在前的，前述的
例句：Bob highly appreciate the preceding man' s precious preciseexercise.
鮑伯高度欣賞前面那個人可貴的精確演練。