单词学习rare1) adj.稀有的，罕见的，不寻常的（rarer, rarest）not often happening or seen, unusualeg. He is a rare person.他是个少见的人。a rare book珍本a rare plant珍稀植物a rare butterfly一只罕见的蝴蝶a rare visitor稀客a rare edition珍藏本It is rare + for (sb) + to do sth某人很少做某事eg. It is rare for him to be absent.他很少缺席。2) adj.（气体等）稀薄的，稀疏的thinthe rare air of the mountains山里的稀薄空气3）adj.半熟的，煮得嫩的Id like my steak rare, please.我要的牛排要三、四分熟。half-done半熟 well-done全熟rarity rerti: n. c珍品，奇
