柯林斯詞典reducer /r??dju?s?/ 1. N a chemical solution used to lessen the density of a negative or print by oxidizing some of the blackened silver to soluble silver compounds 還原劑[photog] 返回 reducer劍橋詞典in football , a hard tackle that a defender makes at the beginning of a game , with the intention of making an attacking player feel worried for the rest of the game （足球比賽）剛開始不久就做出的強(qiáng)力鏟球（目地是讓對(duì)方前鋒在賸下的比賽時(shí)間裡擔(dān)驚受怕） 返回 reducer