gainsn.收益名词gain的复数形式.gainn.获得；收益；增益v.获得；到达；增加；获利；(钟、表等)走得快gain attenuator增益衰减器gain acceptance得到认可gains or losses得或失gain one's ears燃料识别gain feed ratio增重饲料比Gain generating增益生成gain a majority取得大多数人的帮助gain adjustable可调增益gaining ability增重能力,增重效率gain of leather[化] 得革率