gainn.获得;收益;增益v.获得;到达;增加;获利;(钟、表等)走得快
gain drift增益漂移
gain entry得到入场/入会权
gain error增益误差
gain stage增益级
gain point达到目的
gainlinessn.优美
gaingivingn.疑虑;疑惧
gain layer增益层
Gain model收获模型
gain index构建索引