concentration n.專注;集中;集合
concept n.概念;觀念;設(shè)想
conception n.觀念;概念
concern n.關(guān)心;關(guān)注;vt.涉及;使關(guān)心
concert n.音樂會,演奏會
concession n.讓步;特許權(quán);承認(rèn)
conclude v.推斷出;作結(jié)論
conclusion n.結(jié)論
concrete a.實在的,具體的;n.混凝土
condense v.(使)壓縮,精簡
