adj.代用的；假的
n.代用品
In the 16 months since the first graft, the ersatz skin has not yet been rejected by any of the patients. 第一次植皮后的16個月中，人造皮膚在每個病人身上都還沒有排斥現(xiàn)象。
Instead of first-hand experiences and real interation, they have ersatz experiences on screens. 他們沒有親身體驗的經(jīng)歷和互動，只有來自各種屏幕的虛假經(jīng)歷。
用作名詞 (n.)There is a flourishing trade in ersatz ginseng. 人參代用品的買賣很興
